Home / 7,818.57-11,726.77-1,974.83

Finding the Fourth Proportional to 7,818.57, 11,726.77 and 1,974.83

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Solution

The fourth proportional to 7,818.57, 11,726.77 and 1,974.83 is: 2,961.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.57 : 11,726.77 = 1,974.83 : x
  2. Step 2: Convert to fraction form
    7,818.57/11,726.77 = 1,974.83/x
  3. Step 3: Cross multiply
    7,818.57x = 11,726.77 × 1,974.83
  4. Step 4: Simplify right side
    7,818.57x = 23,158,377.20
  5. Step 5: Solve for x
    x = 23,158,377.20/7,818.57
  6. Step 6: Final answer
    x = 2,961.97

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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.