Home / 11,242.36-15,515.52-8,404.82

Finding the Fourth Proportional to 11,242.36, 15,515.52 and 8,404.82

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Solution

The fourth proportional to 11,242.36, 15,515.52 and 8,404.82 is: 11,599.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.36 : 15,515.52 = 8,404.82 : x
  2. Step 2: Convert to fraction form
    11,242.36/15,515.52 = 8,404.82/x
  3. Step 3: Cross multiply
    11,242.36x = 15,515.52 × 8,404.82
  4. Step 4: Simplify right side
    11,242.36x = 130,405,110.78
  5. Step 5: Solve for x
    x = 130,405,110.78/11,242.36
  6. Step 6: Final answer
    x = 11,599.44

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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.