Home / 18,947.97-28,397.62-9,072.45

Finding the Fourth Proportional to 18,947.97, 28,397.62 and 9,072.45

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Solution

The fourth proportional to 18,947.97, 28,397.62 and 9,072.45 is: 13,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.97 : 28,397.62 = 9,072.45 : x
  2. Step 2: Convert to fraction form
    18,947.97/28,397.62 = 9,072.45/x
  3. Step 3: Cross multiply
    18,947.97x = 28,397.62 × 9,072.45
  4. Step 4: Simplify right side
    18,947.97x = 257,635,987.57
  5. Step 5: Solve for x
    x = 257,635,987.57/18,947.97
  6. Step 6: Final answer
    x = 13,597.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.