Home / 15,918.73-21,966.56-9,204.79

Finding the Fourth Proportional to 15,918.73, 21,966.56 and 9,204.79

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Solution

The fourth proportional to 15,918.73, 21,966.56 and 9,204.79 is: 12,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.73 : 21,966.56 = 9,204.79 : x
  2. Step 2: Convert to fraction form
    15,918.73/21,966.56 = 9,204.79/x
  3. Step 3: Cross multiply
    15,918.73x = 21,966.56 × 9,204.79
  4. Step 4: Simplify right side
    15,918.73x = 202,197,415.97
  5. Step 5: Solve for x
    x = 202,197,415.97/15,918.73
  6. Step 6: Final answer
    x = 12,701.86

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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.