Home / 15,844.67-21,865.50-8,770.94

Finding the Fourth Proportional to 15,844.67, 21,865.50 and 8,770.94

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Solution

The fourth proportional to 15,844.67, 21,865.50 and 8,770.94 is: 12,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.67 : 21,865.50 = 8,770.94 : x
  2. Step 2: Convert to fraction form
    15,844.67/21,865.50 = 8,770.94/x
  3. Step 3: Cross multiply
    15,844.67x = 21,865.50 × 8,770.94
  4. Step 4: Simplify right side
    15,844.67x = 191,780,879.24
  5. Step 5: Solve for x
    x = 191,780,879.24/15,844.67
  6. Step 6: Final answer
    x = 12,103.81

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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.