Home / 10,392.75-15,589.13-4,155.57

Finding the Fourth Proportional to 10,392.75, 15,589.13 and 4,155.57

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Solution

The fourth proportional to 10,392.75, 15,589.13 and 4,155.57 is: 6,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.75 : 15,589.13 = 4,155.57 : x
  2. Step 2: Convert to fraction form
    10,392.75/15,589.13 = 4,155.57/x
  3. Step 3: Cross multiply
    10,392.75x = 15,589.13 × 4,155.57
  4. Step 4: Simplify right side
    10,392.75x = 64,781,700.18
  5. Step 5: Solve for x
    x = 64,781,700.18/10,392.75
  6. Step 6: Final answer
    x = 6,233.36

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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.