Home / 15,150.13-20,907.17-8,863.72

Finding the Fourth Proportional to 15,150.13, 20,907.17 and 8,863.72

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Solution

The fourth proportional to 15,150.13, 20,907.17 and 8,863.72 is: 12,231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.13 : 20,907.17 = 8,863.72 : x
  2. Step 2: Convert to fraction form
    15,150.13/20,907.17 = 8,863.72/x
  3. Step 3: Cross multiply
    15,150.13x = 20,907.17 × 8,863.72
  4. Step 4: Simplify right side
    15,150.13x = 185,315,300.87
  5. Step 5: Solve for x
    x = 185,315,300.87/15,150.13
  6. Step 6: Final answer
    x = 12,231.93

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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.