Home / 15,146.97-20,901.75-9,481.46

Finding the Fourth Proportional to 15,146.97, 20,901.75 and 9,481.46

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Solution

The fourth proportional to 15,146.97, 20,901.75 and 9,481.46 is: 13,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.97 : 20,901.75 = 9,481.46 : x
  2. Step 2: Convert to fraction form
    15,146.97/20,901.75 = 9,481.46/x
  3. Step 3: Cross multiply
    15,146.97x = 20,901.75 × 9,481.46
  4. Step 4: Simplify right side
    15,146.97x = 198,178,966.49
  5. Step 5: Solve for x
    x = 198,178,966.49/15,146.97
  6. Step 6: Final answer
    x = 13,083.74

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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.