Home / 15,054.26-20,774.45-8,680.73

Finding the Fourth Proportional to 15,054.26, 20,774.45 and 8,680.73

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Solution

The fourth proportional to 15,054.26, 20,774.45 and 8,680.73 is: 11,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.26 : 20,774.45 = 8,680.73 : x
  2. Step 2: Convert to fraction form
    15,054.26/20,774.45 = 8,680.73/x
  3. Step 3: Cross multiply
    15,054.26x = 20,774.45 × 8,680.73
  4. Step 4: Simplify right side
    15,054.26x = 180,337,309.18
  5. Step 5: Solve for x
    x = 180,337,309.18/15,054.26
  6. Step 6: Final answer
    x = 11,979.16

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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.