Home / 15,212.19-20,992.78-8,497.83

Finding the Fourth Proportional to 15,212.19, 20,992.78 and 8,497.83

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Solution

The fourth proportional to 15,212.19, 20,992.78 and 8,497.83 is: 11,726.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.19 : 20,992.78 = 8,497.83 : x
  2. Step 2: Convert to fraction form
    15,212.19/20,992.78 = 8,497.83/x
  3. Step 3: Cross multiply
    15,212.19x = 20,992.78 × 8,497.83
  4. Step 4: Simplify right side
    15,212.19x = 178,393,075.67
  5. Step 5: Solve for x
    x = 178,393,075.67/15,212.19
  6. Step 6: Final answer
    x = 11,726.98

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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.