Home / 9,116.20-13,680.70-3,925.80

Finding the Fourth Proportional to 9,116.20, 13,680.70 and 3,925.80

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Solution

The fourth proportional to 9,116.20, 13,680.70 and 3,925.80 is: 5,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.20 : 13,680.70 = 3,925.80 : x
  2. Step 2: Convert to fraction form
    9,116.20/13,680.70 = 3,925.80/x
  3. Step 3: Cross multiply
    9,116.20x = 13,680.70 × 3,925.80
  4. Step 4: Simplify right side
    9,116.20x = 53,707,692.06
  5. Step 5: Solve for x
    x = 53,707,692.06/9,116.20
  6. Step 6: Final answer
    x = 5,891.46

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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.