Home / 11,188.26-15,440.61-7,404.90

Finding the Fourth Proportional to 11,188.26, 15,440.61 and 7,404.90

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Solution

The fourth proportional to 11,188.26, 15,440.61 and 7,404.90 is: 10,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.26 : 15,440.61 = 7,404.90 : x
  2. Step 2: Convert to fraction form
    11,188.26/15,440.61 = 7,404.90/x
  3. Step 3: Cross multiply
    11,188.26x = 15,440.61 × 7,404.90
  4. Step 4: Simplify right side
    11,188.26x = 114,336,172.99
  5. Step 5: Solve for x
    x = 114,336,172.99/11,188.26
  6. Step 6: Final answer
    x = 10,219.30

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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.