Home / 15,682.08-21,641.68-8,608.88

Finding the Fourth Proportional to 15,682.08, 21,641.68 and 8,608.88

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Solution

The fourth proportional to 15,682.08, 21,641.68 and 8,608.88 is: 11,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.08 : 21,641.68 = 8,608.88 : x
  2. Step 2: Convert to fraction form
    15,682.08/21,641.68 = 8,608.88/x
  3. Step 3: Cross multiply
    15,682.08x = 21,641.68 × 8,608.88
  4. Step 4: Simplify right side
    15,682.08x = 186,310,626.12
  5. Step 5: Solve for x
    x = 186,310,626.12/15,682.08
  6. Step 6: Final answer
    x = 11,880.48

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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.