Home / 14,170.55-21,340.17-12,343.71

Finding the Fourth Proportional to 14,170.55, 21,340.17 and 12,343.71

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Solution

The fourth proportional to 14,170.55, 21,340.17 and 12,343.71 is: 18,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.55 : 21,340.17 = 12,343.71 : x
  2. Step 2: Convert to fraction form
    14,170.55/21,340.17 = 12,343.71/x
  3. Step 3: Cross multiply
    14,170.55x = 21,340.17 × 12,343.71
  4. Step 4: Simplify right side
    14,170.55x = 263,416,869.83
  5. Step 5: Solve for x
    x = 263,416,869.83/14,170.55
  6. Step 6: Final answer
    x = 18,589.04

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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.