Home / 18,135.11-25,025.10-10,175.81

Finding the Fourth Proportional to 18,135.11, 25,025.10 and 10,175.81

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Solution

The fourth proportional to 18,135.11, 25,025.10 and 10,175.81 is: 14,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.11 : 25,025.10 = 10,175.81 : x
  2. Step 2: Convert to fraction form
    18,135.11/25,025.10 = 10,175.81/x
  3. Step 3: Cross multiply
    18,135.11x = 25,025.10 × 10,175.81
  4. Step 4: Simplify right side
    18,135.11x = 254,650,537.71
  5. Step 5: Solve for x
    x = 254,650,537.71/18,135.11
  6. Step 6: Final answer
    x = 14,041.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.