Home / 11,883.78-17,851.59-7,270.02

Finding the Fourth Proportional to 11,883.78, 17,851.59 and 7,270.02

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Solution

The fourth proportional to 11,883.78, 17,851.59 and 7,270.02 is: 10,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.78 : 17,851.59 = 7,270.02 : x
  2. Step 2: Convert to fraction form
    11,883.78/17,851.59 = 7,270.02/x
  3. Step 3: Cross multiply
    11,883.78x = 17,851.59 × 7,270.02
  4. Step 4: Simplify right side
    11,883.78x = 129,781,416.33
  5. Step 5: Solve for x
    x = 129,781,416.33/11,883.78
  6. Step 6: Final answer
    x = 10,920.89

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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.