Home / 12,968.96-17,857.92-10,869.44

Finding the Fourth Proportional to 12,968.96, 17,857.92 and 10,869.44

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Solution

The fourth proportional to 12,968.96, 17,857.92 and 10,869.44 is: 14,966.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.96 : 17,857.92 = 10,869.44 : x
  2. Step 2: Convert to fraction form
    12,968.96/17,857.92 = 10,869.44/x
  3. Step 3: Cross multiply
    12,968.96x = 17,857.92 × 10,869.44
  4. Step 4: Simplify right side
    12,968.96x = 194,105,589.96
  5. Step 5: Solve for x
    x = 194,105,589.96/12,968.96
  6. Step 6: Final answer
    x = 14,966.94

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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.