Home / 13,747.78-20,607.09-5,957.20

Finding the Fourth Proportional to 13,747.78, 20,607.09 and 5,957.20

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Solution

The fourth proportional to 13,747.78, 20,607.09 and 5,957.20 is: 8,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.78 : 20,607.09 = 5,957.20 : x
  2. Step 2: Convert to fraction form
    13,747.78/20,607.09 = 5,957.20/x
  3. Step 3: Cross multiply
    13,747.78x = 20,607.09 × 5,957.20
  4. Step 4: Simplify right side
    13,747.78x = 122,760,556.55
  5. Step 5: Solve for x
    x = 122,760,556.55/13,747.78
  6. Step 6: Final answer
    x = 8,929.48

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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.