Home / 10,255.32-15,382.70-2,859.48

Finding the Fourth Proportional to 10,255.32, 15,382.70 and 2,859.48

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Solution

The fourth proportional to 10,255.32, 15,382.70 and 2,859.48 is: 4,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.32 : 15,382.70 = 2,859.48 : x
  2. Step 2: Convert to fraction form
    10,255.32/15,382.70 = 2,859.48/x
  3. Step 3: Cross multiply
    10,255.32x = 15,382.70 × 2,859.48
  4. Step 4: Simplify right side
    10,255.32x = 43,986,508.70
  5. Step 5: Solve for x
    x = 43,986,508.70/10,255.32
  6. Step 6: Final answer
    x = 4,289.14

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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.