Home / 7,458.10-11,187.15-7,330.10

Finding the Fourth Proportional to 7,458.10, 11,187.15 and 7,330.10

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Solution

The fourth proportional to 7,458.10, 11,187.15 and 7,330.10 is: 10,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.10 : 11,187.15 = 7,330.10 : x
  2. Step 2: Convert to fraction form
    7,458.10/11,187.15 = 7,330.10/x
  3. Step 3: Cross multiply
    7,458.10x = 11,187.15 × 7,330.10
  4. Step 4: Simplify right side
    7,458.10x = 82,002,928.22
  5. Step 5: Solve for x
    x = 82,002,928.22/7,458.10
  6. Step 6: Final answer
    x = 10,995.15

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.