Home / 15,211.26-20,992.35-8,497.02

Finding the Fourth Proportional to 15,211.26, 20,992.35 and 8,497.02

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Solution

The fourth proportional to 15,211.26, 20,992.35 and 8,497.02 is: 11,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.26 : 20,992.35 = 8,497.02 : x
  2. Step 2: Convert to fraction form
    15,211.26/20,992.35 = 8,497.02/x
  3. Step 3: Cross multiply
    15,211.26x = 20,992.35 × 8,497.02
  4. Step 4: Simplify right side
    15,211.26x = 178,372,417.80
  5. Step 5: Solve for x
    x = 178,372,417.80/15,211.26
  6. Step 6: Final answer
    x = 11,726.34

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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.