Home / 15,638.73-21,600.28-11,382.97

Finding the Fourth Proportional to 15,638.73, 21,600.28 and 11,382.97

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Solution

The fourth proportional to 15,638.73, 21,600.28 and 11,382.97 is: 15,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.73 : 21,600.28 = 11,382.97 : x
  2. Step 2: Convert to fraction form
    15,638.73/21,600.28 = 11,382.97/x
  3. Step 3: Cross multiply
    15,638.73x = 21,600.28 × 11,382.97
  4. Step 4: Simplify right side
    15,638.73x = 245,875,339.23
  5. Step 5: Solve for x
    x = 245,875,339.23/15,638.73
  6. Step 6: Final answer
    x = 15,722.21

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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.