Home / 12,376.20-17,073.36-8,134.32

Finding the Fourth Proportional to 12,376.20, 17,073.36 and 8,134.32

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Solution

The fourth proportional to 12,376.20, 17,073.36 and 8,134.32 is: 11,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.20 : 17,073.36 = 8,134.32 : x
  2. Step 2: Convert to fraction form
    12,376.20/17,073.36 = 8,134.32/x
  3. Step 3: Cross multiply
    12,376.20x = 17,073.36 × 8,134.32
  4. Step 4: Simplify right side
    12,376.20x = 138,880,173.72
  5. Step 5: Solve for x
    x = 138,880,173.72/12,376.20
  6. Step 6: Final answer
    x = 11,221.55

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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.