Home / 13,434.97-20,152.46-10,320.55

Finding the Fourth Proportional to 13,434.97, 20,152.46 and 10,320.55

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Solution

The fourth proportional to 13,434.97, 20,152.46 and 10,320.55 is: 15,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.97 : 20,152.46 = 10,320.55 : x
  2. Step 2: Convert to fraction form
    13,434.97/20,152.46 = 10,320.55/x
  3. Step 3: Cross multiply
    13,434.97x = 20,152.46 × 10,320.55
  4. Step 4: Simplify right side
    13,434.97x = 207,984,471.05
  5. Step 5: Solve for x
    x = 207,984,471.05/13,434.97
  6. Step 6: Final answer
    x = 15,480.83

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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.