Home / 8,426.57-12,639.92-5,523.26

Finding the Fourth Proportional to 8,426.57, 12,639.92 and 5,523.26

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Solution

The fourth proportional to 8,426.57, 12,639.92 and 5,523.26 is: 8,284.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.57 : 12,639.92 = 5,523.26 : x
  2. Step 2: Convert to fraction form
    8,426.57/12,639.92 = 5,523.26/x
  3. Step 3: Cross multiply
    8,426.57x = 12,639.92 × 5,523.26
  4. Step 4: Simplify right side
    8,426.57x = 69,813,473.72
  5. Step 5: Solve for x
    x = 69,813,473.72/8,426.57
  6. Step 6: Final answer
    x = 8,284.93

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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.