Home / 13,574.11-18,732.29-8,268.95

Finding the Fourth Proportional to 13,574.11, 18,732.29 and 8,268.95

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Solution

The fourth proportional to 13,574.11, 18,732.29 and 8,268.95 is: 11,411.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.11 : 18,732.29 = 8,268.95 : x
  2. Step 2: Convert to fraction form
    13,574.11/18,732.29 = 8,268.95/x
  3. Step 3: Cross multiply
    13,574.11x = 18,732.29 × 8,268.95
  4. Step 4: Simplify right side
    13,574.11x = 154,896,369.40
  5. Step 5: Solve for x
    x = 154,896,369.40/13,574.11
  6. Step 6: Final answer
    x = 11,411.16

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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.