Home / 13,396.65-20,079.18-4,626.78

Finding the Fourth Proportional to 13,396.65, 20,079.18 and 4,626.78

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Solution

The fourth proportional to 13,396.65, 20,079.18 and 4,626.78 is: 6,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.65 : 20,079.18 = 4,626.78 : x
  2. Step 2: Convert to fraction form
    13,396.65/20,079.18 = 4,626.78/x
  3. Step 3: Cross multiply
    13,396.65x = 20,079.18 × 4,626.78
  4. Step 4: Simplify right side
    13,396.65x = 92,901,948.44
  5. Step 5: Solve for x
    x = 92,901,948.44/13,396.65
  6. Step 6: Final answer
    x = 6,934.71

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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.