Home / 15,016.24-20,723.66-8,729.84

Finding the Fourth Proportional to 15,016.24, 20,723.66 and 8,729.84

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Solution

The fourth proportional to 15,016.24, 20,723.66 and 8,729.84 is: 12,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.24 : 20,723.66 = 8,729.84 : x
  2. Step 2: Convert to fraction form
    15,016.24/20,723.66 = 8,729.84/x
  3. Step 3: Cross multiply
    15,016.24x = 20,723.66 × 8,729.84
  4. Step 4: Simplify right side
    15,016.24x = 180,914,236.01
  5. Step 5: Solve for x
    x = 180,914,236.01/15,016.24
  6. Step 6: Final answer
    x = 12,047.91

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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.