Home / 10,947.11-15,107.38-6,474.69

Finding the Fourth Proportional to 10,947.11, 15,107.38 and 6,474.69

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Solution

The fourth proportional to 10,947.11, 15,107.38 and 6,474.69 is: 8,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.11 : 15,107.38 = 6,474.69 : x
  2. Step 2: Convert to fraction form
    10,947.11/15,107.38 = 6,474.69/x
  3. Step 3: Cross multiply
    10,947.11x = 15,107.38 × 6,474.69
  4. Step 4: Simplify right side
    10,947.11x = 97,815,569.84
  5. Step 5: Solve for x
    x = 97,815,569.84/10,947.11
  6. Step 6: Final answer
    x = 8,935.29

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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.