Home / 15,439.92-23,159.84-5,579.19

Finding the Fourth Proportional to 15,439.92, 23,159.84 and 5,579.19

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Solution

The fourth proportional to 15,439.92, 23,159.84 and 5,579.19 is: 8,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.92 : 23,159.84 = 5,579.19 : x
  2. Step 2: Convert to fraction form
    15,439.92/23,159.84 = 5,579.19/x
  3. Step 3: Cross multiply
    15,439.92x = 23,159.84 × 5,579.19
  4. Step 4: Simplify right side
    15,439.92x = 129,213,119.83
  5. Step 5: Solve for x
    x = 129,213,119.83/15,439.92
  6. Step 6: Final answer
    x = 8,368.77

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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.