Home / 13,601.80-20,402.94-5,280.92

Finding the Fourth Proportional to 13,601.80, 20,402.94 and 5,280.92

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Solution

The fourth proportional to 13,601.80, 20,402.94 and 5,280.92 is: 7,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.80 : 20,402.94 = 5,280.92 : x
  2. Step 2: Convert to fraction form
    13,601.80/20,402.94 = 5,280.92/x
  3. Step 3: Cross multiply
    13,601.80x = 20,402.94 × 5,280.92
  4. Step 4: Simplify right side
    13,601.80x = 107,746,293.90
  5. Step 5: Solve for x
    x = 107,746,293.90/13,601.80
  6. Step 6: Final answer
    x = 7,921.47

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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.