Home / 14,927.88-20,603.82-11,691.28

Finding the Fourth Proportional to 14,927.88, 20,603.82 and 11,691.28

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Solution

The fourth proportional to 14,927.88, 20,603.82 and 11,691.28 is: 16,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,927.88 : 20,603.82 = 11,691.28 : x
  2. Step 2: Convert to fraction form
    14,927.88/20,603.82 = 11,691.28/x
  3. Step 3: Cross multiply
    14,927.88x = 20,603.82 × 11,691.28
  4. Step 4: Simplify right side
    14,927.88x = 240,885,028.69
  5. Step 5: Solve for x
    x = 240,885,028.69/14,927.88
  6. Step 6: Final answer
    x = 16,136.59

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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.