Home / 18,438.38-25,453.64-14,411.06

Finding the Fourth Proportional to 18,438.38, 25,453.64 and 14,411.06

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Solution

The fourth proportional to 18,438.38, 25,453.64 and 14,411.06 is: 19,894.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.38 : 25,453.64 = 14,411.06 : x
  2. Step 2: Convert to fraction form
    18,438.38/25,453.64 = 14,411.06/x
  3. Step 3: Cross multiply
    18,438.38x = 25,453.64 × 14,411.06
  4. Step 4: Simplify right side
    18,438.38x = 366,813,933.26
  5. Step 5: Solve for x
    x = 366,813,933.26/18,438.38
  6. Step 6: Final answer
    x = 19,894.04

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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.