Home / 15,520.80-23,280.92-5,659.98

Finding the Fourth Proportional to 15,520.80, 23,280.92 and 5,659.98

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Solution

The fourth proportional to 15,520.80, 23,280.92 and 5,659.98 is: 8,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.80 : 23,280.92 = 5,659.98 : x
  2. Step 2: Convert to fraction form
    15,520.80/23,280.92 = 5,659.98/x
  3. Step 3: Cross multiply
    15,520.80x = 23,280.92 × 5,659.98
  4. Step 4: Simplify right side
    15,520.80x = 131,769,541.58
  5. Step 5: Solve for x
    x = 131,769,541.58/15,520.80
  6. Step 6: Final answer
    x = 8,489.87

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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.