Home / 12,836.12-17,713.63-7,170.96

Finding the Fourth Proportional to 12,836.12, 17,713.63 and 7,170.96

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Solution

The fourth proportional to 12,836.12, 17,713.63 and 7,170.96 is: 9,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.12 : 17,713.63 = 7,170.96 : x
  2. Step 2: Convert to fraction form
    12,836.12/17,713.63 = 7,170.96/x
  3. Step 3: Cross multiply
    12,836.12x = 17,713.63 × 7,170.96
  4. Step 4: Simplify right side
    12,836.12x = 127,023,732.18
  5. Step 5: Solve for x
    x = 127,023,732.18/12,836.12
  6. Step 6: Final answer
    x = 9,895.80

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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.