Home / 11,290.68-15,584.52-7,312.02

Finding the Fourth Proportional to 11,290.68, 15,584.52 and 7,312.02

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Solution

The fourth proportional to 11,290.68, 15,584.52 and 7,312.02 is: 10,092.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.68 : 15,584.52 = 7,312.02 : x
  2. Step 2: Convert to fraction form
    11,290.68/15,584.52 = 7,312.02/x
  3. Step 3: Cross multiply
    11,290.68x = 15,584.52 × 7,312.02
  4. Step 4: Simplify right side
    11,290.68x = 113,954,321.93
  5. Step 5: Solve for x
    x = 113,954,321.93/11,290.68
  6. Step 6: Final answer
    x = 10,092.78

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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.