Home / 11,113.61-15,334.52-6,635.72

Finding the Fourth Proportional to 11,113.61, 15,334.52 and 6,635.72

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Solution

The fourth proportional to 11,113.61, 15,334.52 and 6,635.72 is: 9,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.61 : 15,334.52 = 6,635.72 : x
  2. Step 2: Convert to fraction form
    11,113.61/15,334.52 = 6,635.72/x
  3. Step 3: Cross multiply
    11,113.61x = 15,334.52 × 6,635.72
  4. Step 4: Simplify right side
    11,113.61x = 101,755,586.21
  5. Step 5: Solve for x
    x = 101,755,586.21/11,113.61
  6. Step 6: Final answer
    x = 9,155.95

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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.