Home / 10,486.82-15,730.21-3,091.35

Finding the Fourth Proportional to 10,486.82, 15,730.21 and 3,091.35

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Solution

The fourth proportional to 10,486.82, 15,730.21 and 3,091.35 is: 4,637.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.82 : 15,730.21 = 3,091.35 : x
  2. Step 2: Convert to fraction form
    10,486.82/15,730.21 = 3,091.35/x
  3. Step 3: Cross multiply
    10,486.82x = 15,730.21 × 3,091.35
  4. Step 4: Simplify right side
    10,486.82x = 48,627,584.68
  5. Step 5: Solve for x
    x = 48,627,584.68/10,486.82
  6. Step 6: Final answer
    x = 4,637.02

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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.