Home / 8,865.89-12,234.96-4,887.21

Finding the Fourth Proportional to 8,865.89, 12,234.96 and 4,887.21

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Solution

The fourth proportional to 8,865.89, 12,234.96 and 4,887.21 is: 6,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.89 : 12,234.96 = 4,887.21 : x
  2. Step 2: Convert to fraction form
    8,865.89/12,234.96 = 4,887.21/x
  3. Step 3: Cross multiply
    8,865.89x = 12,234.96 × 4,887.21
  4. Step 4: Simplify right side
    8,865.89x = 59,794,818.86
  5. Step 5: Solve for x
    x = 59,794,818.86/8,865.89
  6. Step 6: Final answer
    x = 6,744.37

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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.