Home / 7,431.16-11,158.30-6,402.68

Finding the Fourth Proportional to 7,431.16, 11,158.30 and 6,402.68

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Solution

The fourth proportional to 7,431.16, 11,158.30 and 6,402.68 is: 9,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.16 : 11,158.30 = 6,402.68 : x
  2. Step 2: Convert to fraction form
    7,431.16/11,158.30 = 6,402.68/x
  3. Step 3: Cross multiply
    7,431.16x = 11,158.30 × 6,402.68
  4. Step 4: Simplify right side
    7,431.16x = 71,443,024.24
  5. Step 5: Solve for x
    x = 71,443,024.24/7,431.16
  6. Step 6: Final answer
    x = 9,613.98

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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.