Home / 12,240.48-18,195.69-11,881.29

Finding the Fourth Proportional to 12,240.48, 18,195.69 and 11,881.29

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Solution

The fourth proportional to 12,240.48, 18,195.69 and 11,881.29 is: 17,661.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.48 : 18,195.69 = 11,881.29 : x
  2. Step 2: Convert to fraction form
    12,240.48/18,195.69 = 11,881.29/x
  3. Step 3: Cross multiply
    12,240.48x = 18,195.69 × 11,881.29
  4. Step 4: Simplify right side
    12,240.48x = 216,188,269.64
  5. Step 5: Solve for x
    x = 216,188,269.64/12,240.48
  6. Step 6: Final answer
    x = 17,661.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.