Home / 14,729.29-20,318.71-8,756.75

Finding the Fourth Proportional to 14,729.29, 20,318.71 and 8,756.75

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Solution

The fourth proportional to 14,729.29, 20,318.71 and 8,756.75 is: 12,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.29 : 20,318.71 = 8,756.75 : x
  2. Step 2: Convert to fraction form
    14,729.29/20,318.71 = 8,756.75/x
  3. Step 3: Cross multiply
    14,729.29x = 20,318.71 × 8,756.75
  4. Step 4: Simplify right side
    14,729.29x = 177,925,863.79
  5. Step 5: Solve for x
    x = 177,925,863.79/14,729.29
  6. Step 6: Final answer
    x = 12,079.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.