Home / 11,078.91-15,288.28-6,363.19

Finding the Fourth Proportional to 11,078.91, 15,288.28 and 6,363.19

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Solution

The fourth proportional to 11,078.91, 15,288.28 and 6,363.19 is: 8,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.91 : 15,288.28 = 6,363.19 : x
  2. Step 2: Convert to fraction form
    11,078.91/15,288.28 = 6,363.19/x
  3. Step 3: Cross multiply
    11,078.91x = 15,288.28 × 6,363.19
  4. Step 4: Simplify right side
    11,078.91x = 97,282,233.62
  5. Step 5: Solve for x
    x = 97,282,233.62/11,078.91
  6. Step 6: Final answer
    x = 8,780.85

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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.