Home / 8,639.27-11,922.57-5,102.49

Finding the Fourth Proportional to 8,639.27, 11,922.57 and 5,102.49

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Solution

The fourth proportional to 8,639.27, 11,922.57 and 5,102.49 is: 7,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.27 : 11,922.57 = 5,102.49 : x
  2. Step 2: Convert to fraction form
    8,639.27/11,922.57 = 5,102.49/x
  3. Step 3: Cross multiply
    8,639.27x = 11,922.57 × 5,102.49
  4. Step 4: Simplify right side
    8,639.27x = 60,834,794.20
  5. Step 5: Solve for x
    x = 60,834,794.20/8,639.27
  6. Step 6: Final answer
    x = 7,041.66

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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.