Home / 9,121.41-13,680.60-2,545.83

Finding the Fourth Proportional to 9,121.41, 13,680.60 and 2,545.83

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Solution

The fourth proportional to 9,121.41, 13,680.60 and 2,545.83 is: 3,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.41 : 13,680.60 = 2,545.83 : x
  2. Step 2: Convert to fraction form
    9,121.41/13,680.60 = 2,545.83/x
  3. Step 3: Cross multiply
    9,121.41x = 13,680.60 × 2,545.83
  4. Step 4: Simplify right side
    9,121.41x = 34,828,472.35
  5. Step 5: Solve for x
    x = 34,828,472.35/9,121.41
  6. Step 6: Final answer
    x = 3,818.32

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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.