Home / 8,626.47-12,936.93-2,781.71

Finding the Fourth Proportional to 8,626.47, 12,936.93 and 2,781.71

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Solution

The fourth proportional to 8,626.47, 12,936.93 and 2,781.71 is: 4,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.47 : 12,936.93 = 2,781.71 : x
  2. Step 2: Convert to fraction form
    8,626.47/12,936.93 = 2,781.71/x
  3. Step 3: Cross multiply
    8,626.47x = 12,936.93 × 2,781.71
  4. Step 4: Simplify right side
    8,626.47x = 35,986,760.95
  5. Step 5: Solve for x
    x = 35,986,760.95/8,626.47
  6. Step 6: Final answer
    x = 4,171.67

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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.