Home / 10,479.96-15,721.51-3,460.72

Finding the Fourth Proportional to 10,479.96, 15,721.51 and 3,460.72

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Solution

The fourth proportional to 10,479.96, 15,721.51 and 3,460.72 is: 5,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.96 : 15,721.51 = 3,460.72 : x
  2. Step 2: Convert to fraction form
    10,479.96/15,721.51 = 3,460.72/x
  3. Step 3: Cross multiply
    10,479.96x = 15,721.51 × 3,460.72
  4. Step 4: Simplify right side
    10,479.96x = 54,407,735.44
  5. Step 5: Solve for x
    x = 54,407,735.44/10,479.96
  6. Step 6: Final answer
    x = 5,191.60

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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.