Home / 7,422.03-11,131.10-2,155.63

Finding the Fourth Proportional to 7,422.03, 11,131.10 and 2,155.63

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Solution

The fourth proportional to 7,422.03, 11,131.10 and 2,155.63 is: 3,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.03 : 11,131.10 = 2,155.63 : x
  2. Step 2: Convert to fraction form
    7,422.03/11,131.10 = 2,155.63/x
  3. Step 3: Cross multiply
    7,422.03x = 11,131.10 × 2,155.63
  4. Step 4: Simplify right side
    7,422.03x = 23,994,502.57
  5. Step 5: Solve for x
    x = 23,994,502.57/7,422.03
  6. Step 6: Final answer
    x = 3,232.88

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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.