Home / 11,387.68-17,081.56-5,539.28

Finding the Fourth Proportional to 11,387.68, 17,081.56 and 5,539.28

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Solution

The fourth proportional to 11,387.68, 17,081.56 and 5,539.28 is: 8,308.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.68 : 17,081.56 = 5,539.28 : x
  2. Step 2: Convert to fraction form
    11,387.68/17,081.56 = 5,539.28/x
  3. Step 3: Cross multiply
    11,387.68x = 17,081.56 × 5,539.28
  4. Step 4: Simplify right side
    11,387.68x = 94,619,543.68
  5. Step 5: Solve for x
    x = 94,619,543.68/11,387.68
  6. Step 6: Final answer
    x = 8,308.94

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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.