Home / 8,158.88-11,255.38-5,507.12

Finding the Fourth Proportional to 8,158.88, 11,255.38 and 5,507.12

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Solution

The fourth proportional to 8,158.88, 11,255.38 and 5,507.12 is: 7,597.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.88 : 11,255.38 = 5,507.12 : x
  2. Step 2: Convert to fraction form
    8,158.88/11,255.38 = 5,507.12/x
  3. Step 3: Cross multiply
    8,158.88x = 11,255.38 × 5,507.12
  4. Step 4: Simplify right side
    8,158.88x = 61,984,728.31
  5. Step 5: Solve for x
    x = 61,984,728.31/8,158.88
  6. Step 6: Final answer
    x = 7,597.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.