Home / 21,207.45-29,267.18-11,776

Finding the Fourth Proportional to 21,207.45, 29,267.18 and 11,776

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Solution

The fourth proportional to 21,207.45, 29,267.18 and 11,776 is: 16,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.45 : 29,267.18 = 11,776 : x
  2. Step 2: Convert to fraction form
    21,207.45/29,267.18 = 11,776/x
  3. Step 3: Cross multiply
    21,207.45x = 29,267.18 × 11,776
  4. Step 4: Simplify right side
    21,207.45x = 344,650,252.80
  5. Step 5: Solve for x
    x = 344,650,252.80/21,207.45
  6. Step 6: Final answer
    x = 16,251.38

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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.