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Finding the Fourth Proportional to 12,000.74, 16,560.92 and 6,623.24

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Solution

The fourth proportional to 12,000.74, 16,560.92 and 6,623.24 is: 9,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.74 : 16,560.92 = 6,623.24 : x
  2. Step 2: Convert to fraction form
    12,000.74/16,560.92 = 6,623.24/x
  3. Step 3: Cross multiply
    12,000.74x = 16,560.92 × 6,623.24
  4. Step 4: Simplify right side
    12,000.74x = 109,686,914.66
  5. Step 5: Solve for x
    x = 109,686,914.66/12,000.74
  6. Step 6: Final answer
    x = 9,140.01

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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.