Home / 15,016.62-20,723.01-8,210.66

Finding the Fourth Proportional to 15,016.62, 20,723.01 and 8,210.66

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Solution

The fourth proportional to 15,016.62, 20,723.01 and 8,210.66 is: 11,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.62 : 20,723.01 = 8,210.66 : x
  2. Step 2: Convert to fraction form
    15,016.62/20,723.01 = 8,210.66/x
  3. Step 3: Cross multiply
    15,016.62x = 20,723.01 × 8,210.66
  4. Step 4: Simplify right side
    15,016.62x = 170,149,589.29
  5. Step 5: Solve for x
    x = 170,149,589.29/15,016.62
  6. Step 6: Final answer
    x = 11,330.76

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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.