Home / 12,536.15-18,806.81-5,140.44

Finding the Fourth Proportional to 12,536.15, 18,806.81 and 5,140.44

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Solution

The fourth proportional to 12,536.15, 18,806.81 and 5,140.44 is: 7,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.15 : 18,806.81 = 5,140.44 : x
  2. Step 2: Convert to fraction form
    12,536.15/18,806.81 = 5,140.44/x
  3. Step 3: Cross multiply
    12,536.15x = 18,806.81 × 5,140.44
  4. Step 4: Simplify right side
    12,536.15x = 96,675,252.69
  5. Step 5: Solve for x
    x = 96,675,252.69/12,536.15
  6. Step 6: Final answer
    x = 7,711.72

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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.