Home / 8,938.64-12,337.12-5,162.42

Finding the Fourth Proportional to 8,938.64, 12,337.12 and 5,162.42

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Solution

The fourth proportional to 8,938.64, 12,337.12 and 5,162.42 is: 7,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.64 : 12,337.12 = 5,162.42 : x
  2. Step 2: Convert to fraction form
    8,938.64/12,337.12 = 5,162.42/x
  3. Step 3: Cross multiply
    8,938.64x = 12,337.12 × 5,162.42
  4. Step 4: Simplify right side
    8,938.64x = 63,689,395.03
  5. Step 5: Solve for x
    x = 63,689,395.03/8,938.64
  6. Step 6: Final answer
    x = 7,125.18

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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.