Home / 15,521.73-21,381.98-11,260.22

Finding the Fourth Proportional to 15,521.73, 21,381.98 and 11,260.22

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Solution

The fourth proportional to 15,521.73, 21,381.98 and 11,260.22 is: 15,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.73 : 21,381.98 = 11,260.22 : x
  2. Step 2: Convert to fraction form
    15,521.73/21,381.98 = 11,260.22/x
  3. Step 3: Cross multiply
    15,521.73x = 21,381.98 × 11,260.22
  4. Step 4: Simplify right side
    15,521.73x = 240,765,635.62
  5. Step 5: Solve for x
    x = 240,765,635.62/15,521.73
  6. Step 6: Final answer
    x = 15,511.52

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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.