Home / 10,340.90-15,511.35-9,192.73

Finding the Fourth Proportional to 10,340.90, 15,511.35 and 9,192.73

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Solution

The fourth proportional to 10,340.90, 15,511.35 and 9,192.73 is: 13,789.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.90 : 15,511.35 = 9,192.73 : x
  2. Step 2: Convert to fraction form
    10,340.90/15,511.35 = 9,192.73/x
  3. Step 3: Cross multiply
    10,340.90x = 15,511.35 × 9,192.73
  4. Step 4: Simplify right side
    10,340.90x = 142,591,574.93
  5. Step 5: Solve for x
    x = 142,591,574.93/10,340.90
  6. Step 6: Final answer
    x = 13,789.09

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