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Finding the Fourth Proportional to 12,000.30, 16,560.86 and 6,696.15

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Solution

The fourth proportional to 12,000.30, 16,560.86 and 6,696.15 is: 9,240.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.30 : 16,560.86 = 6,696.15 : x
  2. Step 2: Convert to fraction form
    12,000.30/16,560.86 = 6,696.15/x
  3. Step 3: Cross multiply
    12,000.30x = 16,560.86 × 6,696.15
  4. Step 4: Simplify right side
    12,000.30x = 110,894,002.69
  5. Step 5: Solve for x
    x = 110,894,002.69/12,000.30
  6. Step 6: Final answer
    x = 9,240.94

Related Problems

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Half scale
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Double scale
Find fourth proportional to 12,001.30, 16,562.24 and 6,697.15
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.