Home / 12,000.79-16,561.89-6,695.72

Finding the Fourth Proportional to 12,000.79, 16,561.89 and 6,695.72

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Solution

The fourth proportional to 12,000.79, 16,561.89 and 6,695.72 is: 9,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.79 : 16,561.89 = 6,695.72 : x
  2. Step 2: Convert to fraction form
    12,000.79/16,561.89 = 6,695.72/x
  3. Step 3: Cross multiply
    12,000.79x = 16,561.89 × 6,695.72
  4. Step 4: Simplify right side
    12,000.79x = 110,893,802.78
  5. Step 5: Solve for x
    x = 110,893,802.78/12,000.79
  6. Step 6: Final answer
    x = 9,240.54

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Half scale
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Double scale
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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.