Home / 13,320.20-19,966.98-6,726.44

Finding the Fourth Proportional to 13,320.20, 19,966.98 and 6,726.44

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Solution

The fourth proportional to 13,320.20, 19,966.98 and 6,726.44 is: 10,082.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.20 : 19,966.98 = 6,726.44 : x
  2. Step 2: Convert to fraction form
    13,320.20/19,966.98 = 6,726.44/x
  3. Step 3: Cross multiply
    13,320.20x = 19,966.98 × 6,726.44
  4. Step 4: Simplify right side
    13,320.20x = 134,306,692.95
  5. Step 5: Solve for x
    x = 134,306,692.95/13,320.20
  6. Step 6: Final answer
    x = 10,082.93

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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.