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Finding the Fourth Proportional to 9,254.28, 12,721.56 and 7,973.40

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Solution

The fourth proportional to 9,254.28, 12,721.56 and 7,973.40 is: 10,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,254.28 : 12,721.56 = 7,973.40 : x
  2. Step 2: Convert to fraction form
    9,254.28/12,721.56 = 7,973.40/x
  3. Step 3: Cross multiply
    9,254.28x = 12,721.56 × 7,973.40
  4. Step 4: Simplify right side
    9,254.28x = 101,434,086.50
  5. Step 5: Solve for x
    x = 101,434,086.50/9,254.28
  6. Step 6: Final answer
    x = 10,960.78

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.