Home / 8,942.13-12,337.28-5,164.80

Finding the Fourth Proportional to 8,942.13, 12,337.28 and 5,164.80

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Solution

The fourth proportional to 8,942.13, 12,337.28 and 5,164.80 is: 7,125.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.13 : 12,337.28 = 5,164.80 : x
  2. Step 2: Convert to fraction form
    8,942.13/12,337.28 = 5,164.80/x
  3. Step 3: Cross multiply
    8,942.13x = 12,337.28 × 5,164.80
  4. Step 4: Simplify right side
    8,942.13x = 63,719,583.74
  5. Step 5: Solve for x
    x = 63,719,583.74/8,942.13
  6. Step 6: Final answer
    x = 7,125.77

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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.