Home / 10,360.49-15,540.75-7,909.23

Finding the Fourth Proportional to 10,360.49, 15,540.75 and 7,909.23

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Solution

The fourth proportional to 10,360.49, 15,540.75 and 7,909.23 is: 11,863.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.49 : 15,540.75 = 7,909.23 : x
  2. Step 2: Convert to fraction form
    10,360.49/15,540.75 = 7,909.23/x
  3. Step 3: Cross multiply
    10,360.49x = 15,540.75 × 7,909.23
  4. Step 4: Simplify right side
    10,360.49x = 122,915,366.12
  5. Step 5: Solve for x
    x = 122,915,366.12/10,360.49
  6. Step 6: Final answer
    x = 11,863.86

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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.