Home / 8,589.29-11,847.78-5,760.77

Finding the Fourth Proportional to 8,589.29, 11,847.78 and 5,760.77

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Solution

The fourth proportional to 8,589.29, 11,847.78 and 5,760.77 is: 7,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.29 : 11,847.78 = 5,760.77 : x
  2. Step 2: Convert to fraction form
    8,589.29/11,847.78 = 5,760.77/x
  3. Step 3: Cross multiply
    8,589.29x = 11,847.78 × 5,760.77
  4. Step 4: Simplify right side
    8,589.29x = 68,252,276.35
  5. Step 5: Solve for x
    x = 68,252,276.35/8,589.29
  6. Step 6: Final answer
    x = 7,946.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.