Home / 9,388.28-12,954.78-5,408.60

Finding the Fourth Proportional to 9,388.28, 12,954.78 and 5,408.60

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Solution

The fourth proportional to 9,388.28, 12,954.78 and 5,408.60 is: 7,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.28 : 12,954.78 = 5,408.60 : x
  2. Step 2: Convert to fraction form
    9,388.28/12,954.78 = 5,408.60/x
  3. Step 3: Cross multiply
    9,388.28x = 12,954.78 × 5,408.60
  4. Step 4: Simplify right side
    9,388.28x = 70,067,223.11
  5. Step 5: Solve for x
    x = 70,067,223.11/9,388.28
  6. Step 6: Final answer
    x = 7,463.27

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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.