Home / 18,331.78-25,297.90-9,948.28

Finding the Fourth Proportional to 18,331.78, 25,297.90 and 9,948.28

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Solution

The fourth proportional to 18,331.78, 25,297.90 and 9,948.28 is: 13,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.78 : 25,297.90 = 9,948.28 : x
  2. Step 2: Convert to fraction form
    18,331.78/25,297.90 = 9,948.28/x
  3. Step 3: Cross multiply
    18,331.78x = 25,297.90 × 9,948.28
  4. Step 4: Simplify right side
    18,331.78x = 251,670,592.61
  5. Step 5: Solve for x
    x = 251,670,592.61/18,331.78
  6. Step 6: Final answer
    x = 13,728.65

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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.