Home / 13,112.10-18,092.52-8,637.66

Finding the Fourth Proportional to 13,112.10, 18,092.52 and 8,637.66

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Solution

The fourth proportional to 13,112.10, 18,092.52 and 8,637.66 is: 11,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.10 : 18,092.52 = 8,637.66 : x
  2. Step 2: Convert to fraction form
    13,112.10/18,092.52 = 8,637.66/x
  3. Step 3: Cross multiply
    13,112.10x = 18,092.52 × 8,637.66
  4. Step 4: Simplify right side
    13,112.10x = 156,277,036.30
  5. Step 5: Solve for x
    x = 156,277,036.30/13,112.10
  6. Step 6: Final answer
    x = 11,918.54

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1.5x scale

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.