Home / 13,391.28-20,086.92-5,594.40

Finding the Fourth Proportional to 13,391.28, 20,086.92 and 5,594.40

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Solution

The fourth proportional to 13,391.28, 20,086.92 and 5,594.40 is: 8,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.28 : 20,086.92 = 5,594.40 : x
  2. Step 2: Convert to fraction form
    13,391.28/20,086.92 = 5,594.40/x
  3. Step 3: Cross multiply
    13,391.28x = 20,086.92 × 5,594.40
  4. Step 4: Simplify right side
    13,391.28x = 112,374,265.25
  5. Step 5: Solve for x
    x = 112,374,265.25/13,391.28
  6. Step 6: Final answer
    x = 8,391.60

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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.