Home / 14,387.12-21,553.94-7,818.83

Finding the Fourth Proportional to 14,387.12, 21,553.94 and 7,818.83

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Solution

The fourth proportional to 14,387.12, 21,553.94 and 7,818.83 is: 11,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.12 : 21,553.94 = 7,818.83 : x
  2. Step 2: Convert to fraction form
    14,387.12/21,553.94 = 7,818.83/x
  3. Step 3: Cross multiply
    14,387.12x = 21,553.94 × 7,818.83
  4. Step 4: Simplify right side
    14,387.12x = 168,526,553.60
  5. Step 5: Solve for x
    x = 168,526,553.60/14,387.12
  6. Step 6: Final answer
    x = 11,713.71

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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.