Home / 8,359.04-12,540.24-2,812.16

Finding the Fourth Proportional to 8,359.04, 12,540.24 and 2,812.16

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Solution

The fourth proportional to 8,359.04, 12,540.24 and 2,812.16 is: 4,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.04 : 12,540.24 = 2,812.16 : x
  2. Step 2: Convert to fraction form
    8,359.04/12,540.24 = 2,812.16/x
  3. Step 3: Cross multiply
    8,359.04x = 12,540.24 × 2,812.16
  4. Step 4: Simplify right side
    8,359.04x = 35,265,161.32
  5. Step 5: Solve for x
    x = 35,265,161.32/8,359.04
  6. Step 6: Final answer
    x = 4,218.81

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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.