Home / 18,331.13-25,296.98-9,947.63

Finding the Fourth Proportional to 18,331.13, 25,296.98 and 9,947.63

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Solution

The fourth proportional to 18,331.13, 25,296.98 and 9,947.63 is: 13,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.13 : 25,296.98 = 9,947.63 : x
  2. Step 2: Convert to fraction form
    18,331.13/25,296.98 = 9,947.63/x
  3. Step 3: Cross multiply
    18,331.13x = 25,296.98 × 9,947.63
  4. Step 4: Simplify right side
    18,331.13x = 251,644,820.93
  5. Step 5: Solve for x
    x = 251,644,820.93/18,331.13
  6. Step 6: Final answer
    x = 13,727.73

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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.