Home / 12,603.28-18,904.98-3,838.18

Finding the Fourth Proportional to 12,603.28, 18,904.98 and 3,838.18

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Solution

The fourth proportional to 12,603.28, 18,904.98 and 3,838.18 is: 5,757.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.28 : 18,904.98 = 3,838.18 : x
  2. Step 2: Convert to fraction form
    12,603.28/18,904.98 = 3,838.18/x
  3. Step 3: Cross multiply
    12,603.28x = 18,904.98 × 3,838.18
  4. Step 4: Simplify right side
    12,603.28x = 72,560,716.14
  5. Step 5: Solve for x
    x = 72,560,716.14/12,603.28
  6. Step 6: Final answer
    x = 5,757.29

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1.5x scale

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.