Home / 15,932.73-21,990.33-9,220.53

Finding the Fourth Proportional to 15,932.73, 21,990.33 and 9,220.53

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Solution

The fourth proportional to 15,932.73, 21,990.33 and 9,220.53 is: 12,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,932.73 : 21,990.33 = 9,220.53 : x
  2. Step 2: Convert to fraction form
    15,932.73/21,990.33 = 9,220.53/x
  3. Step 3: Cross multiply
    15,932.73x = 21,990.33 × 9,220.53
  4. Step 4: Simplify right side
    15,932.73x = 202,762,497.47
  5. Step 5: Solve for x
    x = 202,762,497.47/15,932.73
  6. Step 6: Final answer
    x = 12,726.16

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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.