Home / 8,454.38-12,681.36-3,523.91

Finding the Fourth Proportional to 8,454.38, 12,681.36 and 3,523.91

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Solution

The fourth proportional to 8,454.38, 12,681.36 and 3,523.91 is: 5,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.38 : 12,681.36 = 3,523.91 : x
  2. Step 2: Convert to fraction form
    8,454.38/12,681.36 = 3,523.91/x
  3. Step 3: Cross multiply
    8,454.38x = 12,681.36 × 3,523.91
  4. Step 4: Simplify right side
    8,454.38x = 44,687,907.91
  5. Step 5: Solve for x
    x = 44,687,907.91/8,454.38
  6. Step 6: Final answer
    x = 5,285.77

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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.