Home / 10,556.42-15,838.88-3,984.48

Finding the Fourth Proportional to 10,556.42, 15,838.88 and 3,984.48

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Solution

The fourth proportional to 10,556.42, 15,838.88 and 3,984.48 is: 5,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.42 : 15,838.88 = 3,984.48 : x
  2. Step 2: Convert to fraction form
    10,556.42/15,838.88 = 3,984.48/x
  3. Step 3: Cross multiply
    10,556.42x = 15,838.88 × 3,984.48
  4. Step 4: Simplify right side
    10,556.42x = 63,109,680.66
  5. Step 5: Solve for x
    x = 63,109,680.66/10,556.42
  6. Step 6: Final answer
    x = 5,978.33

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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.