Home / 12,936.96-17,853.12-7,486.56

Finding the Fourth Proportional to 12,936.96, 17,853.12 and 7,486.56

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Solution

The fourth proportional to 12,936.96, 17,853.12 and 7,486.56 is: 10,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.96 : 17,853.12 = 7,486.56 : x
  2. Step 2: Convert to fraction form
    12,936.96/17,853.12 = 7,486.56/x
  3. Step 3: Cross multiply
    12,936.96x = 17,853.12 × 7,486.56
  4. Step 4: Simplify right side
    12,936.96x = 133,658,454.07
  5. Step 5: Solve for x
    x = 133,658,454.07/12,936.96
  6. Step 6: Final answer
    x = 10,331.52

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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.