Home / 11,213.68-15,472.56-7,675.60

Finding the Fourth Proportional to 11,213.68, 15,472.56 and 7,675.60

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Solution

The fourth proportional to 11,213.68, 15,472.56 and 7,675.60 is: 10,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.68 : 15,472.56 = 7,675.60 : x
  2. Step 2: Convert to fraction form
    11,213.68/15,472.56 = 7,675.60/x
  3. Step 3: Cross multiply
    11,213.68x = 15,472.56 × 7,675.60
  4. Step 4: Simplify right side
    11,213.68x = 118,761,181.54
  5. Step 5: Solve for x
    x = 118,761,181.54/11,213.68
  6. Step 6: Final answer
    x = 10,590.74

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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.