Home / 13,092.74-18,089.15-9,131.54

Finding the Fourth Proportional to 13,092.74, 18,089.15 and 9,131.54

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Solution

The fourth proportional to 13,092.74, 18,089.15 and 9,131.54 is: 12,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.74 : 18,089.15 = 9,131.54 : x
  2. Step 2: Convert to fraction form
    13,092.74/18,089.15 = 9,131.54/x
  3. Step 3: Cross multiply
    13,092.74x = 18,089.15 × 9,131.54
  4. Step 4: Simplify right side
    13,092.74x = 165,181,660.69
  5. Step 5: Solve for x
    x = 165,181,660.69/13,092.74
  6. Step 6: Final answer
    x = 12,616.28

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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.