Home / 11,340.80-17,013.76-5,186.56

Finding the Fourth Proportional to 11,340.80, 17,013.76 and 5,186.56

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Solution

The fourth proportional to 11,340.80, 17,013.76 and 5,186.56 is: 7,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.80 : 17,013.76 = 5,186.56 : x
  2. Step 2: Convert to fraction form
    11,340.80/17,013.76 = 5,186.56/x
  3. Step 3: Cross multiply
    11,340.80x = 17,013.76 × 5,186.56
  4. Step 4: Simplify right side
    11,340.80x = 88,242,887.07
  5. Step 5: Solve for x
    x = 88,242,887.07/11,340.80
  6. Step 6: Final answer
    x = 7,781.01

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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.