Home / 13,340.52-20,016.27-6,768.72

Finding the Fourth Proportional to 13,340.52, 20,016.27 and 6,768.72

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Solution

The fourth proportional to 13,340.52, 20,016.27 and 6,768.72 is: 10,155.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.52 : 20,016.27 = 6,768.72 : x
  2. Step 2: Convert to fraction form
    13,340.52/20,016.27 = 6,768.72/x
  3. Step 3: Cross multiply
    13,340.52x = 20,016.27 × 6,768.72
  4. Step 4: Simplify right side
    13,340.52x = 135,484,527.07
  5. Step 5: Solve for x
    x = 135,484,527.07/13,340.52
  6. Step 6: Final answer
    x = 10,155.87

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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.