Home / 15,147.19-22,690.61-9,216.78

Finding the Fourth Proportional to 15,147.19, 22,690.61 and 9,216.78

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Solution

The fourth proportional to 15,147.19, 22,690.61 and 9,216.78 is: 13,806.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.19 : 22,690.61 = 9,216.78 : x
  2. Step 2: Convert to fraction form
    15,147.19/22,690.61 = 9,216.78/x
  3. Step 3: Cross multiply
    15,147.19x = 22,690.61 × 9,216.78
  4. Step 4: Simplify right side
    15,147.19x = 209,134,360.44
  5. Step 5: Solve for x
    x = 209,134,360.44/15,147.19
  6. Step 6: Final answer
    x = 13,806.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.