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Finding the Fourth Proportional to 13,521.98, 20,282.98 and 6,125.06

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Solution

The fourth proportional to 13,521.98, 20,282.98 and 6,125.06 is: 9,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.98 : 20,282.98 = 6,125.06 : x
  2. Step 2: Convert to fraction form
    13,521.98/20,282.98 = 6,125.06/x
  3. Step 3: Cross multiply
    13,521.98x = 20,282.98 × 6,125.06
  4. Step 4: Simplify right side
    13,521.98x = 124,234,469.48
  5. Step 5: Solve for x
    x = 124,234,469.48/13,521.98
  6. Step 6: Final answer
    x = 9,187.59

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1.5x scale

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.