Home / 8,426.16-12,639.07-3,744.90

Finding the Fourth Proportional to 8,426.16, 12,639.07 and 3,744.90

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Solution

The fourth proportional to 8,426.16, 12,639.07 and 3,744.90 is: 5,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.16 : 12,639.07 = 3,744.90 : x
  2. Step 2: Convert to fraction form
    8,426.16/12,639.07 = 3,744.90/x
  3. Step 3: Cross multiply
    8,426.16x = 12,639.07 × 3,744.90
  4. Step 4: Simplify right side
    8,426.16x = 47,332,057.92
  5. Step 5: Solve for x
    x = 47,332,057.92/8,426.16
  6. Step 6: Final answer
    x = 5,617.28

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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.