Home / 9,408.32-12,983.72-5,159.55

Finding the Fourth Proportional to 9,408.32, 12,983.72 and 5,159.55

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Solution

The fourth proportional to 9,408.32, 12,983.72 and 5,159.55 is: 7,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.32 : 12,983.72 = 5,159.55 : x
  2. Step 2: Convert to fraction form
    9,408.32/12,983.72 = 5,159.55/x
  3. Step 3: Cross multiply
    9,408.32x = 12,983.72 × 5,159.55
  4. Step 4: Simplify right side
    9,408.32x = 66,990,126.73
  5. Step 5: Solve for x
    x = 66,990,126.73/9,408.32
  6. Step 6: Final answer
    x = 7,120.31

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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.