Home / 8,391.46-11,577.34-5,203.61

Finding the Fourth Proportional to 8,391.46, 11,577.34 and 5,203.61

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Solution

The fourth proportional to 8,391.46, 11,577.34 and 5,203.61 is: 7,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.46 : 11,577.34 = 5,203.61 : x
  2. Step 2: Convert to fraction form
    8,391.46/11,577.34 = 5,203.61/x
  3. Step 3: Cross multiply
    8,391.46x = 11,577.34 × 5,203.61
  4. Step 4: Simplify right side
    8,391.46x = 60,243,962.20
  5. Step 5: Solve for x
    x = 60,243,962.20/8,391.46
  6. Step 6: Final answer
    x = 7,179.20

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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.