Home / 18,678.52-25,775.88-10,180.86

Finding the Fourth Proportional to 18,678.52, 25,775.88 and 10,180.86

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Solution

The fourth proportional to 18,678.52, 25,775.88 and 10,180.86 is: 14,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.52 : 25,775.88 = 10,180.86 : x
  2. Step 2: Convert to fraction form
    18,678.52/25,775.88 = 10,180.86/x
  3. Step 3: Cross multiply
    18,678.52x = 25,775.88 × 10,180.86
  4. Step 4: Simplify right side
    18,678.52x = 262,420,625.66
  5. Step 5: Solve for x
    x = 262,420,625.66/18,678.52
  6. Step 6: Final answer
    x = 14,049.33

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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.