Home / 14,488.82-21,729.45-5,127.92

Finding the Fourth Proportional to 14,488.82, 21,729.45 and 5,127.92

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Solution

The fourth proportional to 14,488.82, 21,729.45 and 5,127.92 is: 7,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.82 : 21,729.45 = 5,127.92 : x
  2. Step 2: Convert to fraction form
    14,488.82/21,729.45 = 5,127.92/x
  3. Step 3: Cross multiply
    14,488.82x = 21,729.45 × 5,127.92
  4. Step 4: Simplify right side
    14,488.82x = 111,426,881.24
  5. Step 5: Solve for x
    x = 111,426,881.24/14,488.82
  6. Step 6: Final answer
    x = 7,690.54

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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.