Home / 13,760.40-20,626.17-6,730.71

Finding the Fourth Proportional to 13,760.40, 20,626.17 and 6,730.71

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Solution

The fourth proportional to 13,760.40, 20,626.17 and 6,730.71 is: 10,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.40 : 20,626.17 = 6,730.71 : x
  2. Step 2: Convert to fraction form
    13,760.40/20,626.17 = 6,730.71/x
  3. Step 3: Cross multiply
    13,760.40x = 20,626.17 × 6,730.71
  4. Step 4: Simplify right side
    13,760.40x = 138,828,768.68
  5. Step 5: Solve for x
    x = 138,828,768.68/13,760.40
  6. Step 6: Final answer
    x = 10,089.01

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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.