Home / 11,712.96-17,521.44-8,749.56

Finding the Fourth Proportional to 11,712.96, 17,521.44 and 8,749.56

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Solution

The fourth proportional to 11,712.96, 17,521.44 and 8,749.56 is: 13,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.96 : 17,521.44 = 8,749.56 : x
  2. Step 2: Convert to fraction form
    11,712.96/17,521.44 = 8,749.56/x
  3. Step 3: Cross multiply
    11,712.96x = 17,521.44 × 8,749.56
  4. Step 4: Simplify right side
    11,712.96x = 153,304,890.57
  5. Step 5: Solve for x
    x = 153,304,890.57/11,712.96
  6. Step 6: Final answer
    x = 13,088.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.