Home / 12,885.12-17,817.26-10,227.92

Finding the Fourth Proportional to 12,885.12, 17,817.26 and 10,227.92

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Solution

The fourth proportional to 12,885.12, 17,817.26 and 10,227.92 is: 14,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.12 : 17,817.26 = 10,227.92 : x
  2. Step 2: Convert to fraction form
    12,885.12/17,817.26 = 10,227.92/x
  3. Step 3: Cross multiply
    12,885.12x = 17,817.26 × 10,227.92
  4. Step 4: Simplify right side
    12,885.12x = 182,233,369.67
  5. Step 5: Solve for x
    x = 182,233,369.67/12,885.12
  6. Step 6: Final answer
    x = 14,142.93

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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.