Home / 10,445.56-15,668.04-3,871.60

Finding the Fourth Proportional to 10,445.56, 15,668.04 and 3,871.60

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Solution

The fourth proportional to 10,445.56, 15,668.04 and 3,871.60 is: 5,807.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.56 : 15,668.04 = 3,871.60 : x
  2. Step 2: Convert to fraction form
    10,445.56/15,668.04 = 3,871.60/x
  3. Step 3: Cross multiply
    10,445.56x = 15,668.04 × 3,871.60
  4. Step 4: Simplify right side
    10,445.56x = 60,660,383.66
  5. Step 5: Solve for x
    x = 60,660,383.66/10,445.56
  6. Step 6: Final answer
    x = 5,807.29

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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.