Home / 13,132.71-19,704.76-6,891.21

Finding the Fourth Proportional to 13,132.71, 19,704.76 and 6,891.21

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Solution

The fourth proportional to 13,132.71, 19,704.76 and 6,891.21 is: 10,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.71 : 19,704.76 = 6,891.21 : x
  2. Step 2: Convert to fraction form
    13,132.71/19,704.76 = 6,891.21/x
  3. Step 3: Cross multiply
    13,132.71x = 19,704.76 × 6,891.21
  4. Step 4: Simplify right side
    13,132.71x = 135,789,695.37
  5. Step 5: Solve for x
    x = 135,789,695.37/13,132.71
  6. Step 6: Final answer
    x = 10,339.81

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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.