Home / 18,701.12-28,059.96-9,933.92

Finding the Fourth Proportional to 18,701.12, 28,059.96 and 9,933.92

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Solution

The fourth proportional to 18,701.12, 28,059.96 and 9,933.92 is: 14,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.12 : 28,059.96 = 9,933.92 : x
  2. Step 2: Convert to fraction form
    18,701.12/28,059.96 = 9,933.92/x
  3. Step 3: Cross multiply
    18,701.12x = 28,059.96 × 9,933.92
  4. Step 4: Simplify right side
    18,701.12x = 278,745,397.84
  5. Step 5: Solve for x
    x = 278,745,397.84/18,701.12
  6. Step 6: Final answer
    x = 14,905.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.