Home / 13,118.19-17,976.95-11,857.02

Finding the Fourth Proportional to 13,118.19, 17,976.95 and 11,857.02

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Solution

The fourth proportional to 13,118.19, 17,976.95 and 11,857.02 is: 16,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.19 : 17,976.95 = 11,857.02 : x
  2. Step 2: Convert to fraction form
    13,118.19/17,976.95 = 11,857.02/x
  3. Step 3: Cross multiply
    13,118.19x = 17,976.95 × 11,857.02
  4. Step 4: Simplify right side
    13,118.19x = 213,152,996.40
  5. Step 5: Solve for x
    x = 213,152,996.40/13,118.19
  6. Step 6: Final answer
    x = 16,248.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.