Home / 14,821.68-20,454.32-8,107.70

Finding the Fourth Proportional to 14,821.68, 20,454.32 and 8,107.70

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Solution

The fourth proportional to 14,821.68, 20,454.32 and 8,107.70 is: 11,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.68 : 20,454.32 = 8,107.70 : x
  2. Step 2: Convert to fraction form
    14,821.68/20,454.32 = 8,107.70/x
  3. Step 3: Cross multiply
    14,821.68x = 20,454.32 × 8,107.70
  4. Step 4: Simplify right side
    14,821.68x = 165,837,561.67
  5. Step 5: Solve for x
    x = 165,837,561.67/14,821.68
  6. Step 6: Final answer
    x = 11,188.85

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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.