Home / 10,215.72-15,323.58-5,589

Finding the Fourth Proportional to 10,215.72, 15,323.58 and 5,589

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Solution

The fourth proportional to 10,215.72, 15,323.58 and 5,589 is: 8,383.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.72 : 15,323.58 = 5,589 : x
  2. Step 2: Convert to fraction form
    10,215.72/15,323.58 = 5,589/x
  3. Step 3: Cross multiply
    10,215.72x = 15,323.58 × 5,589
  4. Step 4: Simplify right side
    10,215.72x = 85,643,488.62
  5. Step 5: Solve for x
    x = 85,643,488.62/10,215.72
  6. Step 6: Final answer
    x = 8,383.50

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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.