Home / 10,427.40-15,638.04-3,404.88

Finding the Fourth Proportional to 10,427.40, 15,638.04 and 3,404.88

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Solution

The fourth proportional to 10,427.40, 15,638.04 and 3,404.88 is: 5,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.40 : 15,638.04 = 3,404.88 : x
  2. Step 2: Convert to fraction form
    10,427.40/15,638.04 = 3,404.88/x
  3. Step 3: Cross multiply
    10,427.40x = 15,638.04 × 3,404.88
  4. Step 4: Simplify right side
    10,427.40x = 53,245,649.64
  5. Step 5: Solve for x
    x = 53,245,649.64/10,427.40
  6. Step 6: Final answer
    x = 5,106.32

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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.