Home / 13,571.38-18,728.04-7,603.30

Finding the Fourth Proportional to 13,571.38, 18,728.04 and 7,603.30

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Solution

The fourth proportional to 13,571.38, 18,728.04 and 7,603.30 is: 10,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.38 : 18,728.04 = 7,603.30 : x
  2. Step 2: Convert to fraction form
    13,571.38/18,728.04 = 7,603.30/x
  3. Step 3: Cross multiply
    13,571.38x = 18,728.04 × 7,603.30
  4. Step 4: Simplify right side
    13,571.38x = 142,394,906.53
  5. Step 5: Solve for x
    x = 142,394,906.53/13,571.38
  6. Step 6: Final answer
    x = 10,492.29

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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.