Home / 8,726.84-13,091.38-3,179.32

Finding the Fourth Proportional to 8,726.84, 13,091.38 and 3,179.32

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Solution

The fourth proportional to 8,726.84, 13,091.38 and 3,179.32 is: 4,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.84 : 13,091.38 = 3,179.32 : x
  2. Step 2: Convert to fraction form
    8,726.84/13,091.38 = 3,179.32/x
  3. Step 3: Cross multiply
    8,726.84x = 13,091.38 × 3,179.32
  4. Step 4: Simplify right side
    8,726.84x = 41,621,686.26
  5. Step 5: Solve for x
    x = 41,621,686.26/8,726.84
  6. Step 6: Final answer
    x = 4,769.39

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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.