Home / 9,153.39-12,631.62-5,175.30

Finding the Fourth Proportional to 9,153.39, 12,631.62 and 5,175.30

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Solution

The fourth proportional to 9,153.39, 12,631.62 and 5,175.30 is: 7,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.39 : 12,631.62 = 5,175.30 : x
  2. Step 2: Convert to fraction form
    9,153.39/12,631.62 = 5,175.30/x
  3. Step 3: Cross multiply
    9,153.39x = 12,631.62 × 5,175.30
  4. Step 4: Simplify right side
    9,153.39x = 65,372,422.99
  5. Step 5: Solve for x
    x = 65,372,422.99/9,153.39
  6. Step 6: Final answer
    x = 7,141.88

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Half scale
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Double scale
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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.