Home / 8,642.05-11,925.83-5,284.90

Finding the Fourth Proportional to 8,642.05, 11,925.83 and 5,284.90

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Solution

The fourth proportional to 8,642.05, 11,925.83 and 5,284.90 is: 7,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.05 : 11,925.83 = 5,284.90 : x
  2. Step 2: Convert to fraction form
    8,642.05/11,925.83 = 5,284.90/x
  3. Step 3: Cross multiply
    8,642.05x = 11,925.83 × 5,284.90
  4. Step 4: Simplify right side
    8,642.05x = 63,026,818.97
  5. Step 5: Solve for x
    x = 63,026,818.97/8,642.05
  6. Step 6: Final answer
    x = 7,293.04

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