Home / 13,531.93-18,661.95-8,496.61

Finding the Fourth Proportional to 13,531.93, 18,661.95 and 8,496.61

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Solution

The fourth proportional to 13,531.93, 18,661.95 and 8,496.61 is: 11,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.93 : 18,661.95 = 8,496.61 : x
  2. Step 2: Convert to fraction form
    13,531.93/18,661.95 = 8,496.61/x
  3. Step 3: Cross multiply
    13,531.93x = 18,661.95 × 8,496.61
  4. Step 4: Simplify right side
    13,531.93x = 158,563,310.99
  5. Step 5: Solve for x
    x = 158,563,310.99/13,531.93
  6. Step 6: Final answer
    x = 11,717.72

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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.