Home / 9,138.37-13,708.23-2,565.06

Finding the Fourth Proportional to 9,138.37, 13,708.23 and 2,565.06

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Solution

The fourth proportional to 9,138.37, 13,708.23 and 2,565.06 is: 3,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.37 : 13,708.23 = 2,565.06 : x
  2. Step 2: Convert to fraction form
    9,138.37/13,708.23 = 2,565.06/x
  3. Step 3: Cross multiply
    9,138.37x = 13,708.23 × 2,565.06
  4. Step 4: Simplify right side
    9,138.37x = 35,162,432.44
  5. Step 5: Solve for x
    x = 35,162,432.44/9,138.37
  6. Step 6: Final answer
    x = 3,847.78

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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.