Home / 14,520.29-21,785.30-5,757.71

Finding the Fourth Proportional to 14,520.29, 21,785.30 and 5,757.71

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Solution

The fourth proportional to 14,520.29, 21,785.30 and 5,757.71 is: 8,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.29 : 21,785.30 = 5,757.71 : x
  2. Step 2: Convert to fraction form
    14,520.29/21,785.30 = 5,757.71/x
  3. Step 3: Cross multiply
    14,520.29x = 21,785.30 × 5,757.71
  4. Step 4: Simplify right side
    14,520.29x = 125,433,410.87
  5. Step 5: Solve for x
    x = 125,433,410.87/14,520.29
  6. Step 6: Final answer
    x = 8,638.49

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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.