Home / 18,827.12-25,980.31-10,761.65

Finding the Fourth Proportional to 18,827.12, 25,980.31 and 10,761.65

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Solution

The fourth proportional to 18,827.12, 25,980.31 and 10,761.65 is: 14,850.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.12 : 25,980.31 = 10,761.65 : x
  2. Step 2: Convert to fraction form
    18,827.12/25,980.31 = 10,761.65/x
  3. Step 3: Cross multiply
    18,827.12x = 25,980.31 × 10,761.65
  4. Step 4: Simplify right side
    18,827.12x = 279,591,003.11
  5. Step 5: Solve for x
    x = 279,591,003.11/18,827.12
  6. Step 6: Final answer
    x = 14,850.44

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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.