Home / 8,633.17-11,902.30-5,643.87

Finding the Fourth Proportional to 8,633.17, 11,902.30 and 5,643.87

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Solution

The fourth proportional to 8,633.17, 11,902.30 and 5,643.87 is: 7,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.17 : 11,902.30 = 5,643.87 : x
  2. Step 2: Convert to fraction form
    8,633.17/11,902.30 = 5,643.87/x
  3. Step 3: Cross multiply
    8,633.17x = 11,902.30 × 5,643.87
  4. Step 4: Simplify right side
    8,633.17x = 67,175,033.90
  5. Step 5: Solve for x
    x = 67,175,033.90/8,633.17
  6. Step 6: Final answer
    x = 7,781.04

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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.