Home / 15,016.70-20,723.30-8,729.08

Finding the Fourth Proportional to 15,016.70, 20,723.30 and 8,729.08

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Solution

The fourth proportional to 15,016.70, 20,723.30 and 8,729.08 is: 12,046.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.70 : 20,723.30 = 8,729.08 : x
  2. Step 2: Convert to fraction form
    15,016.70/20,723.30 = 8,729.08/x
  3. Step 3: Cross multiply
    15,016.70x = 20,723.30 × 8,729.08
  4. Step 4: Simplify right side
    15,016.70x = 180,895,196.30
  5. Step 5: Solve for x
    x = 180,895,196.30/15,016.70
  6. Step 6: Final answer
    x = 12,046.27

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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.