Home / 13,081.86-18,044.88-11,407.29

Finding the Fourth Proportional to 13,081.86, 18,044.88 and 11,407.29

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Solution

The fourth proportional to 13,081.86, 18,044.88 and 11,407.29 is: 15,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.86 : 18,044.88 = 11,407.29 : x
  2. Step 2: Convert to fraction form
    13,081.86/18,044.88 = 11,407.29/x
  3. Step 3: Cross multiply
    13,081.86x = 18,044.88 × 11,407.29
  4. Step 4: Simplify right side
    13,081.86x = 205,843,179.18
  5. Step 5: Solve for x
    x = 205,843,179.18/13,081.86
  6. Step 6: Final answer
    x = 15,735.01

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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.