Home / 18,129.63-27,191.19-11,536.23

Finding the Fourth Proportional to 18,129.63, 27,191.19 and 11,536.23

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Solution

The fourth proportional to 18,129.63, 27,191.19 and 11,536.23 is: 17,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.63 : 27,191.19 = 11,536.23 : x
  2. Step 2: Convert to fraction form
    18,129.63/27,191.19 = 11,536.23/x
  3. Step 3: Cross multiply
    18,129.63x = 27,191.19 × 11,536.23
  4. Step 4: Simplify right side
    18,129.63x = 313,683,685.86
  5. Step 5: Solve for x
    x = 313,683,685.86/18,129.63
  6. Step 6: Final answer
    x = 17,302.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.