Home / 42,132.12-63,198.18-12,549.19

Finding the Fourth Proportional to 42,132.12, 63,198.18 and 12,549.19

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Solution

The fourth proportional to 42,132.12, 63,198.18 and 12,549.19 is: 18,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.12 : 63,198.18 = 12,549.19 : x
  2. Step 2: Convert to fraction form
    42,132.12/63,198.18 = 12,549.19/x
  3. Step 3: Cross multiply
    42,132.12x = 63,198.18 × 12,549.19
  4. Step 4: Simplify right side
    42,132.12x = 793,085,841.85
  5. Step 5: Solve for x
    x = 793,085,841.85/42,132.12
  6. Step 6: Final answer
    x = 18,823.78

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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.