Home / 15,877.22-21,910.70-8,803.49

Finding the Fourth Proportional to 15,877.22, 21,910.70 and 8,803.49

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Solution

The fourth proportional to 15,877.22, 21,910.70 and 8,803.49 is: 12,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.22 : 21,910.70 = 8,803.49 : x
  2. Step 2: Convert to fraction form
    15,877.22/21,910.70 = 8,803.49/x
  3. Step 3: Cross multiply
    15,877.22x = 21,910.70 × 8,803.49
  4. Step 4: Simplify right side
    15,877.22x = 192,890,540.80
  5. Step 5: Solve for x
    x = 192,890,540.80/15,877.22
  6. Step 6: Final answer
    x = 12,148.89

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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.