Home / 15,016.19-20,722.84-9,047.70

Finding the Fourth Proportional to 15,016.19, 20,722.84 and 9,047.70

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Solution

The fourth proportional to 15,016.19, 20,722.84 and 9,047.70 is: 12,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.19 : 20,722.84 = 9,047.70 : x
  2. Step 2: Convert to fraction form
    15,016.19/20,722.84 = 9,047.70/x
  3. Step 3: Cross multiply
    15,016.19x = 20,722.84 × 9,047.70
  4. Step 4: Simplify right side
    15,016.19x = 187,494,016.85
  5. Step 5: Solve for x
    x = 187,494,016.85/15,016.19
  6. Step 6: Final answer
    x = 12,486.13

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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.