Home / 18,003.18-24,845.78-9,938.42

Finding the Fourth Proportional to 18,003.18, 24,845.78 and 9,938.42

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Solution

The fourth proportional to 18,003.18, 24,845.78 and 9,938.42 is: 13,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.18 : 24,845.78 = 9,938.42 : x
  2. Step 2: Convert to fraction form
    18,003.18/24,845.78 = 9,938.42/x
  3. Step 3: Cross multiply
    18,003.18x = 24,845.78 × 9,938.42
  4. Step 4: Simplify right side
    18,003.18x = 246,927,790.66
  5. Step 5: Solve for x
    x = 246,927,790.66/18,003.18
  6. Step 6: Final answer
    x = 13,715.78

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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.