Home / 15,065.19-20,789.46-8,350.56

Finding the Fourth Proportional to 15,065.19, 20,789.46 and 8,350.56

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Solution

The fourth proportional to 15,065.19, 20,789.46 and 8,350.56 is: 11,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.19 : 20,789.46 = 8,350.56 : x
  2. Step 2: Convert to fraction form
    15,065.19/20,789.46 = 8,350.56/x
  3. Step 3: Cross multiply
    15,065.19x = 20,789.46 × 8,350.56
  4. Step 4: Simplify right side
    15,065.19x = 173,603,633.10
  5. Step 5: Solve for x
    x = 173,603,633.10/15,065.19
  6. Step 6: Final answer
    x = 11,523.49

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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.