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Finding the Fourth Proportional to 10,110.66, 15,162.66 and 3,870.42

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Solution

The fourth proportional to 10,110.66, 15,162.66 and 3,870.42 is: 5,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.66 : 15,162.66 = 3,870.42 : x
  2. Step 2: Convert to fraction form
    10,110.66/15,162.66 = 3,870.42/x
  3. Step 3: Cross multiply
    10,110.66x = 15,162.66 × 3,870.42
  4. Step 4: Simplify right side
    10,110.66x = 58,685,862.52
  5. Step 5: Solve for x
    x = 58,685,862.52/10,110.66
  6. Step 6: Final answer
    x = 5,804.36

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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.