Home / 18,360.88-25,337.92-9,977.36

Finding the Fourth Proportional to 18,360.88, 25,337.92 and 9,977.36

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Solution

The fourth proportional to 18,360.88, 25,337.92 and 9,977.36 is: 13,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.88 : 25,337.92 = 9,977.36 : x
  2. Step 2: Convert to fraction form
    18,360.88/25,337.92 = 9,977.36/x
  3. Step 3: Cross multiply
    18,360.88x = 25,337.92 × 9,977.36
  4. Step 4: Simplify right side
    18,360.88x = 252,805,549.49
  5. Step 5: Solve for x
    x = 252,805,549.49/18,360.88
  6. Step 6: Final answer
    x = 13,768.71

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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.