Home / 13,522.18-18,639.44-12,435.97

Finding the Fourth Proportional to 13,522.18, 18,639.44 and 12,435.97

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Solution

The fourth proportional to 13,522.18, 18,639.44 and 12,435.97 is: 17,142.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.18 : 18,639.44 = 12,435.97 : x
  2. Step 2: Convert to fraction form
    13,522.18/18,639.44 = 12,435.97/x
  3. Step 3: Cross multiply
    13,522.18x = 18,639.44 × 12,435.97
  4. Step 4: Simplify right side
    13,522.18x = 231,799,516.66
  5. Step 5: Solve for x
    x = 231,799,516.66/13,522.18
  6. Step 6: Final answer
    x = 17,142.17

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1.5x scale

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.