Home / 15,996.78-22,077.09-8,923.86

Finding the Fourth Proportional to 15,996.78, 22,077.09 and 8,923.86

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Solution

The fourth proportional to 15,996.78, 22,077.09 and 8,923.86 is: 12,315.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,996.78 : 22,077.09 = 8,923.86 : x
  2. Step 2: Convert to fraction form
    15,996.78/22,077.09 = 8,923.86/x
  3. Step 3: Cross multiply
    15,996.78x = 22,077.09 × 8,923.86
  4. Step 4: Simplify right side
    15,996.78x = 197,012,860.37
  5. Step 5: Solve for x
    x = 197,012,860.37/15,996.78
  6. Step 6: Final answer
    x = 12,315.78

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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.