Home / 14,458.10-21,687.15-8,917.70

Finding the Fourth Proportional to 14,458.10, 21,687.15 and 8,917.70

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Solution

The fourth proportional to 14,458.10, 21,687.15 and 8,917.70 is: 13,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.10 : 21,687.15 = 8,917.70 : x
  2. Step 2: Convert to fraction form
    14,458.10/21,687.15 = 8,917.70/x
  3. Step 3: Cross multiply
    14,458.10x = 21,687.15 × 8,917.70
  4. Step 4: Simplify right side
    14,458.10x = 193,399,497.56
  5. Step 5: Solve for x
    x = 193,399,497.56/14,458.10
  6. Step 6: Final answer
    x = 13,376.55

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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.