Home / 8,855.20-12,220.16-4,876.32

Finding the Fourth Proportional to 8,855.20, 12,220.16 and 4,876.32

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Solution

The fourth proportional to 8,855.20, 12,220.16 and 4,876.32 is: 6,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.20 : 12,220.16 = 4,876.32 : x
  2. Step 2: Convert to fraction form
    8,855.20/12,220.16 = 4,876.32/x
  3. Step 3: Cross multiply
    8,855.20x = 12,220.16 × 4,876.32
  4. Step 4: Simplify right side
    8,855.20x = 59,589,410.61
  5. Step 5: Solve for x
    x = 59,589,410.61/8,855.20
  6. Step 6: Final answer
    x = 6,729.31

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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.