Home / 13,592.40-20,394.36-5,278.32

Finding the Fourth Proportional to 13,592.40, 20,394.36 and 5,278.32

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Solution

The fourth proportional to 13,592.40, 20,394.36 and 5,278.32 is: 7,919.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.40 : 20,394.36 = 5,278.32 : x
  2. Step 2: Convert to fraction form
    13,592.40/20,394.36 = 5,278.32/x
  3. Step 3: Cross multiply
    13,592.40x = 20,394.36 × 5,278.32
  4. Step 4: Simplify right side
    13,592.40x = 107,647,958.28
  5. Step 5: Solve for x
    x = 107,647,958.28/13,592.40
  6. Step 6: Final answer
    x = 7,919.72

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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.