Home / 14,398.11-21,569.14-8,139.19

Finding the Fourth Proportional to 14,398.11, 21,569.14 and 8,139.19

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Solution

The fourth proportional to 14,398.11, 21,569.14 and 8,139.19 is: 12,192.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.11 : 21,569.14 = 8,139.19 : x
  2. Step 2: Convert to fraction form
    14,398.11/21,569.14 = 8,139.19/x
  3. Step 3: Cross multiply
    14,398.11x = 21,569.14 × 8,139.19
  4. Step 4: Simplify right side
    14,398.11x = 175,555,348.94
  5. Step 5: Solve for x
    x = 175,555,348.94/14,398.11
  6. Step 6: Final answer
    x = 12,192.94

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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.