Home / 14,139.30-21,221.10-6,253.95

Finding the Fourth Proportional to 14,139.30, 21,221.10 and 6,253.95

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Solution

The fourth proportional to 14,139.30, 21,221.10 and 6,253.95 is: 9,386.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.30 : 21,221.10 = 6,253.95 : x
  2. Step 2: Convert to fraction form
    14,139.30/21,221.10 = 6,253.95/x
  3. Step 3: Cross multiply
    14,139.30x = 21,221.10 × 6,253.95
  4. Step 4: Simplify right side
    14,139.30x = 132,715,698.35
  5. Step 5: Solve for x
    x = 132,715,698.35/14,139.30
  6. Step 6: Final answer
    x = 9,386.30

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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.