Home / 8,072.41-12,107.71-2,806.51

Finding the Fourth Proportional to 8,072.41, 12,107.71 and 2,806.51

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Solution

The fourth proportional to 8,072.41, 12,107.71 and 2,806.51 is: 4,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.41 : 12,107.71 = 2,806.51 : x
  2. Step 2: Convert to fraction form
    8,072.41/12,107.71 = 2,806.51/x
  3. Step 3: Cross multiply
    8,072.41x = 12,107.71 × 2,806.51
  4. Step 4: Simplify right side
    8,072.41x = 33,980,409.19
  5. Step 5: Solve for x
    x = 33,980,409.19/8,072.41
  6. Step 6: Final answer
    x = 4,209.45

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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.