Home / 8,770.27-12,107.18-5,185.84

Finding the Fourth Proportional to 8,770.27, 12,107.18 and 5,185.84

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Solution

The fourth proportional to 8,770.27, 12,107.18 and 5,185.84 is: 7,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.27 : 12,107.18 = 5,185.84 : x
  2. Step 2: Convert to fraction form
    8,770.27/12,107.18 = 5,185.84/x
  3. Step 3: Cross multiply
    8,770.27x = 12,107.18 × 5,185.84
  4. Step 4: Simplify right side
    8,770.27x = 62,785,898.33
  5. Step 5: Solve for x
    x = 62,785,898.33/8,770.27
  6. Step 6: Final answer
    x = 7,158.95

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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.