Home / 13,617.24-18,792.52-8,310.50

Finding the Fourth Proportional to 13,617.24, 18,792.52 and 8,310.50

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Solution

The fourth proportional to 13,617.24, 18,792.52 and 8,310.50 is: 11,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.24 : 18,792.52 = 8,310.50 : x
  2. Step 2: Convert to fraction form
    13,617.24/18,792.52 = 8,310.50/x
  3. Step 3: Cross multiply
    13,617.24x = 18,792.52 × 8,310.50
  4. Step 4: Simplify right side
    13,617.24x = 156,175,237.46
  5. Step 5: Solve for x
    x = 156,175,237.46/13,617.24
  6. Step 6: Final answer
    x = 11,468.93

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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.