Home / 9,154.56-12,631.02-5,175.59

Finding the Fourth Proportional to 9,154.56, 12,631.02 and 5,175.59

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Solution

The fourth proportional to 9,154.56, 12,631.02 and 5,175.59 is: 7,141.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.56 : 12,631.02 = 5,175.59 : x
  2. Step 2: Convert to fraction form
    9,154.56/12,631.02 = 5,175.59/x
  3. Step 3: Cross multiply
    9,154.56x = 12,631.02 × 5,175.59
  4. Step 4: Simplify right side
    9,154.56x = 65,372,927.35
  5. Step 5: Solve for x
    x = 65,372,927.35/9,154.56
  6. Step 6: Final answer
    x = 7,141.02

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Double scale
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Similar ratio
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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.