Home / 7,621.30-11,494.20-7,275.70

Finding the Fourth Proportional to 7,621.30, 11,494.20 and 7,275.70

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Solution

The fourth proportional to 7,621.30, 11,494.20 and 7,275.70 is: 10,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.30 : 11,494.20 = 7,275.70 : x
  2. Step 2: Convert to fraction form
    7,621.30/11,494.20 = 7,275.70/x
  3. Step 3: Cross multiply
    7,621.30x = 11,494.20 × 7,275.70
  4. Step 4: Simplify right side
    7,621.30x = 83,628,314.56
  5. Step 5: Solve for x
    x = 83,628,314.56/7,621.30
  6. Step 6: Final answer
    x = 10,972.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.