Home / 11,478.20-17,214.88-5,236.44

Finding the Fourth Proportional to 11,478.20, 17,214.88 and 5,236.44

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Solution

The fourth proportional to 11,478.20, 17,214.88 and 5,236.44 is: 7,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.20 : 17,214.88 = 5,236.44 : x
  2. Step 2: Convert to fraction form
    11,478.20/17,214.88 = 5,236.44/x
  3. Step 3: Cross multiply
    11,478.20x = 17,214.88 × 5,236.44
  4. Step 4: Simplify right side
    11,478.20x = 90,144,686.23
  5. Step 5: Solve for x
    x = 90,144,686.23/11,478.20
  6. Step 6: Final answer
    x = 7,853.56

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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.