Home / 12,435.75-17,175.92-8,236.71

Finding the Fourth Proportional to 12,435.75, 17,175.92 and 8,236.71

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Solution

The fourth proportional to 12,435.75, 17,175.92 and 8,236.71 is: 11,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.75 : 17,175.92 = 8,236.71 : x
  2. Step 2: Convert to fraction form
    12,435.75/17,175.92 = 8,236.71/x
  3. Step 3: Cross multiply
    12,435.75x = 17,175.92 × 8,236.71
  4. Step 4: Simplify right side
    12,435.75x = 141,473,030.84
  5. Step 5: Solve for x
    x = 141,473,030.84/12,435.75
  6. Step 6: Final answer
    x = 11,376.32

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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.