Home / 15,065.79-20,790.23-8,351.52

Finding the Fourth Proportional to 15,065.79, 20,790.23 and 8,351.52

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Solution

The fourth proportional to 15,065.79, 20,790.23 and 8,351.52 is: 11,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.79 : 20,790.23 = 8,351.52 : x
  2. Step 2: Convert to fraction form
    15,065.79/20,790.23 = 8,351.52/x
  3. Step 3: Cross multiply
    15,065.79x = 20,790.23 × 8,351.52
  4. Step 4: Simplify right side
    15,065.79x = 173,629,979.89
  5. Step 5: Solve for x
    x = 173,629,979.89/15,065.79
  6. Step 6: Final answer
    x = 11,524.78

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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.