Home / 18,685.92-25,785.54-11,612.28

Finding the Fourth Proportional to 18,685.92, 25,785.54 and 11,612.28

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Solution

The fourth proportional to 18,685.92, 25,785.54 and 11,612.28 is: 16,024.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.92 : 25,785.54 = 11,612.28 : x
  2. Step 2: Convert to fraction form
    18,685.92/25,785.54 = 11,612.28/x
  3. Step 3: Cross multiply
    18,685.92x = 25,785.54 × 11,612.28
  4. Step 4: Simplify right side
    18,685.92x = 299,428,910.43
  5. Step 5: Solve for x
    x = 299,428,910.43/18,685.92
  6. Step 6: Final answer
    x = 16,024.31

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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.