Home / 12,684.20-17,508.26-8,908.28

Finding the Fourth Proportional to 12,684.20, 17,508.26 and 8,908.28

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Solution

The fourth proportional to 12,684.20, 17,508.26 and 8,908.28 is: 12,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.20 : 17,508.26 = 8,908.28 : x
  2. Step 2: Convert to fraction form
    12,684.20/17,508.26 = 8,908.28/x
  3. Step 3: Cross multiply
    12,684.20x = 17,508.26 × 8,908.28
  4. Step 4: Simplify right side
    12,684.20x = 155,968,482.39
  5. Step 5: Solve for x
    x = 155,968,482.39/12,684.20
  6. Step 6: Final answer
    x = 12,296.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.