Home / 10,155.75-15,233.49-2,659.29

Finding the Fourth Proportional to 10,155.75, 15,233.49 and 2,659.29

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Solution

The fourth proportional to 10,155.75, 15,233.49 and 2,659.29 is: 3,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.75 : 15,233.49 = 2,659.29 : x
  2. Step 2: Convert to fraction form
    10,155.75/15,233.49 = 2,659.29/x
  3. Step 3: Cross multiply
    10,155.75x = 15,233.49 × 2,659.29
  4. Step 4: Simplify right side
    10,155.75x = 40,510,267.62
  5. Step 5: Solve for x
    x = 40,510,267.62/10,155.75
  6. Step 6: Final answer
    x = 3,988.90

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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.