Home / 18,840.43-25,997.61-11,285.71

Finding the Fourth Proportional to 18,840.43, 25,997.61 and 11,285.71

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Solution

The fourth proportional to 18,840.43, 25,997.61 and 11,285.71 is: 15,572.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.43 : 25,997.61 = 11,285.71 : x
  2. Step 2: Convert to fraction form
    18,840.43/25,997.61 = 11,285.71/x
  3. Step 3: Cross multiply
    18,840.43x = 25,997.61 × 11,285.71
  4. Step 4: Simplify right side
    18,840.43x = 293,401,547.23
  5. Step 5: Solve for x
    x = 293,401,547.23/18,840.43
  6. Step 6: Final answer
    x = 15,572.97

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Double scale
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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.