Home / 8,931.38-13,378.88-5,801.90

Finding the Fourth Proportional to 8,931.38, 13,378.88 and 5,801.90

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Solution

The fourth proportional to 8,931.38, 13,378.88 and 5,801.90 is: 8,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.38 : 13,378.88 = 5,801.90 : x
  2. Step 2: Convert to fraction form
    8,931.38/13,378.88 = 5,801.90/x
  3. Step 3: Cross multiply
    8,931.38x = 13,378.88 × 5,801.90
  4. Step 4: Simplify right side
    8,931.38x = 77,622,923.87
  5. Step 5: Solve for x
    x = 77,622,923.87/8,931.38
  6. Step 6: Final answer
    x = 8,691.03

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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.