Home / 8,045.40-11,101.68-4,688.76

Finding the Fourth Proportional to 8,045.40, 11,101.68 and 4,688.76

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Solution

The fourth proportional to 8,045.40, 11,101.68 and 4,688.76 is: 6,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.40 : 11,101.68 = 4,688.76 : x
  2. Step 2: Convert to fraction form
    8,045.40/11,101.68 = 4,688.76/x
  3. Step 3: Cross multiply
    8,045.40x = 11,101.68 × 4,688.76
  4. Step 4: Simplify right side
    8,045.40x = 52,053,113.12
  5. Step 5: Solve for x
    x = 52,053,113.12/8,045.40
  6. Step 6: Final answer
    x = 6,469.92

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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.