Home / 8,348.28-11,521.18-4,811.72

Finding the Fourth Proportional to 8,348.28, 11,521.18 and 4,811.72

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Solution

The fourth proportional to 8,348.28, 11,521.18 and 4,811.72 is: 6,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.28 : 11,521.18 = 4,811.72 : x
  2. Step 2: Convert to fraction form
    8,348.28/11,521.18 = 4,811.72/x
  3. Step 3: Cross multiply
    8,348.28x = 11,521.18 × 4,811.72
  4. Step 4: Simplify right side
    8,348.28x = 55,436,692.23
  5. Step 5: Solve for x
    x = 55,436,692.23/8,348.28
  6. Step 6: Final answer
    x = 6,640.49

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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.