Home / 12,836.08-17,713.65-7,170.47

Finding the Fourth Proportional to 12,836.08, 17,713.65 and 7,170.47

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Solution

The fourth proportional to 12,836.08, 17,713.65 and 7,170.47 is: 9,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.08 : 17,713.65 = 7,170.47 : x
  2. Step 2: Convert to fraction form
    12,836.08/17,713.65 = 7,170.47/x
  3. Step 3: Cross multiply
    12,836.08x = 17,713.65 × 7,170.47
  4. Step 4: Simplify right side
    12,836.08x = 127,015,195.92
  5. Step 5: Solve for x
    x = 127,015,195.92/12,836.08
  6. Step 6: Final answer
    x = 9,895.17

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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.