Home / 13,344.53-20,105.74-12,079.61

Finding the Fourth Proportional to 13,344.53, 20,105.74 and 12,079.61

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Solution

The fourth proportional to 13,344.53, 20,105.74 and 12,079.61 is: 18,199.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.53 : 20,105.74 = 12,079.61 : x
  2. Step 2: Convert to fraction form
    13,344.53/20,105.74 = 12,079.61/x
  3. Step 3: Cross multiply
    13,344.53x = 20,105.74 × 12,079.61
  4. Step 4: Simplify right side
    13,344.53x = 242,869,397.43
  5. Step 5: Solve for x
    x = 242,869,397.43/13,344.53
  6. Step 6: Final answer
    x = 18,199.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.