Home / 9,154.38-12,633.75-5,175.57

Finding the Fourth Proportional to 9,154.38, 12,633.75 and 5,175.57

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Solution

The fourth proportional to 9,154.38, 12,633.75 and 5,175.57 is: 7,142.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.38 : 12,633.75 = 5,175.57 : x
  2. Step 2: Convert to fraction form
    9,154.38/12,633.75 = 5,175.57/x
  3. Step 3: Cross multiply
    9,154.38x = 12,633.75 × 5,175.57
  4. Step 4: Simplify right side
    9,154.38x = 65,386,857.49
  5. Step 5: Solve for x
    x = 65,386,857.49/9,154.38
  6. Step 6: Final answer
    x = 7,142.69

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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.