Home / 11,531.25-17,298.09-5,290.20

Finding the Fourth Proportional to 11,531.25, 17,298.09 and 5,290.20

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Solution

The fourth proportional to 11,531.25, 17,298.09 and 5,290.20 is: 7,935.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.25 : 17,298.09 = 5,290.20 : x
  2. Step 2: Convert to fraction form
    11,531.25/17,298.09 = 5,290.20/x
  3. Step 3: Cross multiply
    11,531.25x = 17,298.09 × 5,290.20
  4. Step 4: Simplify right side
    11,531.25x = 91,510,355.72
  5. Step 5: Solve for x
    x = 91,510,355.72/11,531.25
  6. Step 6: Final answer
    x = 7,935.86

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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.