Home / 13,517.23-20,260.79-5,615.35

Finding the Fourth Proportional to 13,517.23, 20,260.79 and 5,615.35

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Solution

The fourth proportional to 13,517.23, 20,260.79 and 5,615.35 is: 8,416.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.23 : 20,260.79 = 5,615.35 : x
  2. Step 2: Convert to fraction form
    13,517.23/20,260.79 = 5,615.35/x
  3. Step 3: Cross multiply
    13,517.23x = 20,260.79 × 5,615.35
  4. Step 4: Simplify right side
    13,517.23x = 113,771,339.86
  5. Step 5: Solve for x
    x = 113,771,339.86/13,517.23
  6. Step 6: Final answer
    x = 8,416.76

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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.