Home / 13,410.39-20,114.57-5,510.76

Finding the Fourth Proportional to 13,410.39, 20,114.57 and 5,510.76

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Solution

The fourth proportional to 13,410.39, 20,114.57 and 5,510.76 is: 8,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.39 : 20,114.57 = 5,510.76 : x
  2. Step 2: Convert to fraction form
    13,410.39/20,114.57 = 5,510.76/x
  3. Step 3: Cross multiply
    13,410.39x = 20,114.57 × 5,510.76
  4. Step 4: Simplify right side
    13,410.39x = 110,846,540.22
  5. Step 5: Solve for x
    x = 110,846,540.22/13,410.39
  6. Step 6: Final answer
    x = 8,265.72

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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.