Home / 11,440.87-17,128.95-7,270.54

Finding the Fourth Proportional to 11,440.87, 17,128.95 and 7,270.54

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Solution

The fourth proportional to 11,440.87, 17,128.95 and 7,270.54 is: 10,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.87 : 17,128.95 = 7,270.54 : x
  2. Step 2: Convert to fraction form
    11,440.87/17,128.95 = 7,270.54/x
  3. Step 3: Cross multiply
    11,440.87x = 17,128.95 × 7,270.54
  4. Step 4: Simplify right side
    11,440.87x = 124,536,716.13
  5. Step 5: Solve for x
    x = 124,536,716.13/11,440.87
  6. Step 6: Final answer
    x = 10,885.25

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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.