Home / 12,220.37-16,877.93-8,234.57

Finding the Fourth Proportional to 12,220.37, 16,877.93 and 8,234.57

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Solution

The fourth proportional to 12,220.37, 16,877.93 and 8,234.57 is: 11,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.37 : 16,877.93 = 8,234.57 : x
  2. Step 2: Convert to fraction form
    12,220.37/16,877.93 = 8,234.57/x
  3. Step 3: Cross multiply
    12,220.37x = 16,877.93 × 8,234.57
  4. Step 4: Simplify right side
    12,220.37x = 138,982,370.48
  5. Step 5: Solve for x
    x = 138,982,370.48/12,220.37
  6. Step 6: Final answer
    x = 11,373.01

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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.