Home / 13,792.88-20,663.19-8,153.66

Finding the Fourth Proportional to 13,792.88, 20,663.19 and 8,153.66

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Solution

The fourth proportional to 13,792.88, 20,663.19 and 8,153.66 is: 12,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.88 : 20,663.19 = 8,153.66 : x
  2. Step 2: Convert to fraction form
    13,792.88/20,663.19 = 8,153.66/x
  3. Step 3: Cross multiply
    13,792.88x = 20,663.19 × 8,153.66
  4. Step 4: Simplify right side
    13,792.88x = 168,480,522.46
  5. Step 5: Solve for x
    x = 168,480,522.46/13,792.88
  6. Step 6: Final answer
    x = 12,215.04

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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.