Home / 15,110.40-20,853.06-8,396.04

Finding the Fourth Proportional to 15,110.40, 20,853.06 and 8,396.04

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Solution

The fourth proportional to 15,110.40, 20,853.06 and 8,396.04 is: 11,586.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.40 : 20,853.06 = 8,396.04 : x
  2. Step 2: Convert to fraction form
    15,110.40/20,853.06 = 8,396.04/x
  3. Step 3: Cross multiply
    15,110.40x = 20,853.06 × 8,396.04
  4. Step 4: Simplify right side
    15,110.40x = 175,083,125.88
  5. Step 5: Solve for x
    x = 175,083,125.88/15,110.40
  6. Step 6: Final answer
    x = 11,586.93

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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.