Home / 10,380.57-15,570.92-2,589.39

Finding the Fourth Proportional to 10,380.57, 15,570.92 and 2,589.39

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Solution

The fourth proportional to 10,380.57, 15,570.92 and 2,589.39 is: 3,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.57 : 15,570.92 = 2,589.39 : x
  2. Step 2: Convert to fraction form
    10,380.57/15,570.92 = 2,589.39/x
  3. Step 3: Cross multiply
    10,380.57x = 15,570.92 × 2,589.39
  4. Step 4: Simplify right side
    10,380.57x = 40,319,184.54
  5. Step 5: Solve for x
    x = 40,319,184.54/10,380.57
  6. Step 6: Final answer
    x = 3,884.10

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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.