Home / 18,129.09-27,192.53-10,780.32

Finding the Fourth Proportional to 18,129.09, 27,192.53 and 10,780.32

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Solution

The fourth proportional to 18,129.09, 27,192.53 and 10,780.32 is: 16,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.09 : 27,192.53 = 10,780.32 : x
  2. Step 2: Convert to fraction form
    18,129.09/27,192.53 = 10,780.32/x
  3. Step 3: Cross multiply
    18,129.09x = 27,192.53 × 10,780.32
  4. Step 4: Simplify right side
    18,129.09x = 293,144,175.01
  5. Step 5: Solve for x
    x = 293,144,175.01/18,129.09
  6. Step 6: Final answer
    x = 16,169.82

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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.