Home / 8,391.55-11,577.46-5,203.70

Finding the Fourth Proportional to 8,391.55, 11,577.46 and 5,203.70

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Solution

The fourth proportional to 8,391.55, 11,577.46 and 5,203.70 is: 7,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.55 : 11,577.46 = 5,203.70 : x
  2. Step 2: Convert to fraction form
    8,391.55/11,577.46 = 5,203.70/x
  3. Step 3: Cross multiply
    8,391.55x = 11,577.46 × 5,203.70
  4. Step 4: Simplify right side
    8,391.55x = 60,245,602.58
  5. Step 5: Solve for x
    x = 60,245,602.58/8,391.55
  6. Step 6: Final answer
    x = 7,179.32

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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.