Home / 7,818.24-11,727.38-1,974.80

Finding the Fourth Proportional to 7,818.24, 11,727.38 and 1,974.80

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Solution

The fourth proportional to 7,818.24, 11,727.38 and 1,974.80 is: 2,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.24 : 11,727.38 = 1,974.80 : x
  2. Step 2: Convert to fraction form
    7,818.24/11,727.38 = 1,974.80/x
  3. Step 3: Cross multiply
    7,818.24x = 11,727.38 × 1,974.80
  4. Step 4: Simplify right side
    7,818.24x = 23,159,230.02
  5. Step 5: Solve for x
    x = 23,159,230.02/7,818.24
  6. Step 6: Final answer
    x = 2,962.21

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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.