Home / 15,020.15-20,727.94-8,306.23

Finding the Fourth Proportional to 15,020.15, 20,727.94 and 8,306.23

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Solution

The fourth proportional to 15,020.15, 20,727.94 and 8,306.23 is: 11,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.15 : 20,727.94 = 8,306.23 : x
  2. Step 2: Convert to fraction form
    15,020.15/20,727.94 = 8,306.23/x
  3. Step 3: Cross multiply
    15,020.15x = 20,727.94 × 8,306.23
  4. Step 4: Simplify right side
    15,020.15x = 172,171,042.28
  5. Step 5: Solve for x
    x = 172,171,042.28/15,020.15
  6. Step 6: Final answer
    x = 11,462.67

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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.