Home / 9,613.38-13,266.46-5,421.90

Finding the Fourth Proportional to 9,613.38, 13,266.46 and 5,421.90

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Solution

The fourth proportional to 9,613.38, 13,266.46 and 5,421.90 is: 7,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.38 : 13,266.46 = 5,421.90 : x
  2. Step 2: Convert to fraction form
    9,613.38/13,266.46 = 5,421.90/x
  3. Step 3: Cross multiply
    9,613.38x = 13,266.46 × 5,421.90
  4. Step 4: Simplify right side
    9,613.38x = 71,929,419.47
  5. Step 5: Solve for x
    x = 71,929,419.47/9,613.38
  6. Step 6: Final answer
    x = 7,482.22

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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.