Home / 10,536.09-15,806.40-3,141.15

Finding the Fourth Proportional to 10,536.09, 15,806.40 and 3,141.15

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Solution

The fourth proportional to 10,536.09, 15,806.40 and 3,141.15 is: 4,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,536.09 : 15,806.40 = 3,141.15 : x
  2. Step 2: Convert to fraction form
    10,536.09/15,806.40 = 3,141.15/x
  3. Step 3: Cross multiply
    10,536.09x = 15,806.40 × 3,141.15
  4. Step 4: Simplify right side
    10,536.09x = 49,650,273.36
  5. Step 5: Solve for x
    x = 49,650,273.36/10,536.09
  6. Step 6: Final answer
    x = 4,712.40

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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.