Home / 18,879.30-28,306.62-10,560.24

Finding the Fourth Proportional to 18,879.30, 28,306.62 and 10,560.24

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Solution

The fourth proportional to 18,879.30, 28,306.62 and 10,560.24 is: 15,833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.30 : 28,306.62 = 10,560.24 : x
  2. Step 2: Convert to fraction form
    18,879.30/28,306.62 = 10,560.24/x
  3. Step 3: Cross multiply
    18,879.30x = 28,306.62 × 10,560.24
  4. Step 4: Simplify right side
    18,879.30x = 298,924,700.79
  5. Step 5: Solve for x
    x = 298,924,700.79/18,879.30
  6. Step 6: Final answer
    x = 15,833.46

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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.