Home / 19,538.20-29,290.02-9,147.16

Finding the Fourth Proportional to 19,538.20, 29,290.02 and 9,147.16

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Solution

The fourth proportional to 19,538.20, 29,290.02 and 9,147.16 is: 13,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.20 : 29,290.02 = 9,147.16 : x
  2. Step 2: Convert to fraction form
    19,538.20/29,290.02 = 9,147.16/x
  3. Step 3: Cross multiply
    19,538.20x = 29,290.02 × 9,147.16
  4. Step 4: Simplify right side
    19,538.20x = 267,920,499.34
  5. Step 5: Solve for x
    x = 267,920,499.34/19,538.20
  6. Step 6: Final answer
    x = 13,712.65

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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.