Home / 15,211.39-20,992.53-8,497.16

Finding the Fourth Proportional to 15,211.39, 20,992.53 and 8,497.16

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Solution

The fourth proportional to 15,211.39, 20,992.53 and 8,497.16 is: 11,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.39 : 20,992.53 = 8,497.16 : x
  2. Step 2: Convert to fraction form
    15,211.39/20,992.53 = 8,497.16/x
  3. Step 3: Cross multiply
    15,211.39x = 20,992.53 × 8,497.16
  4. Step 4: Simplify right side
    15,211.39x = 178,376,886.21
  5. Step 5: Solve for x
    x = 178,376,886.21/15,211.39
  6. Step 6: Final answer
    x = 11,726.54

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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.