Home / 9,897.25-13,657.81-5,920.56

Finding the Fourth Proportional to 9,897.25, 13,657.81 and 5,920.56

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Solution

The fourth proportional to 9,897.25, 13,657.81 and 5,920.56 is: 8,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.25 : 13,657.81 = 5,920.56 : x
  2. Step 2: Convert to fraction form
    9,897.25/13,657.81 = 5,920.56/x
  3. Step 3: Cross multiply
    9,897.25x = 13,657.81 × 5,920.56
  4. Step 4: Simplify right side
    9,897.25x = 80,861,853.97
  5. Step 5: Solve for x
    x = 80,861,853.97/9,897.25
  6. Step 6: Final answer
    x = 8,170.13

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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.