Home / 18,962.28-28,405.32-9,445.92

Finding the Fourth Proportional to 18,962.28, 28,405.32 and 9,445.92

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Solution

The fourth proportional to 18,962.28, 28,405.32 and 9,445.92 is: 14,149.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.28 : 28,405.32 = 9,445.92 : x
  2. Step 2: Convert to fraction form
    18,962.28/28,405.32 = 9,445.92/x
  3. Step 3: Cross multiply
    18,962.28x = 28,405.32 × 9,445.92
  4. Step 4: Simplify right side
    18,962.28x = 268,314,380.29
  5. Step 5: Solve for x
    x = 268,314,380.29/18,962.28
  6. Step 6: Final answer
    x = 14,149.90

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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.