Home / 8,680.29-13,017.36-3,132.15

Finding the Fourth Proportional to 8,680.29, 13,017.36 and 3,132.15

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Solution

The fourth proportional to 8,680.29, 13,017.36 and 3,132.15 is: 4,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.29 : 13,017.36 = 3,132.15 : x
  2. Step 2: Convert to fraction form
    8,680.29/13,017.36 = 3,132.15/x
  3. Step 3: Cross multiply
    8,680.29x = 13,017.36 × 3,132.15
  4. Step 4: Simplify right side
    8,680.29x = 40,772,324.12
  5. Step 5: Solve for x
    x = 40,772,324.12/8,680.29
  6. Step 6: Final answer
    x = 4,697.12

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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.