Home / 8,855.05-12,220.20-4,875.79

Finding the Fourth Proportional to 8,855.05, 12,220.20 and 4,875.79

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Solution

The fourth proportional to 8,855.05, 12,220.20 and 4,875.79 is: 6,728.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.05 : 12,220.20 = 4,875.79 : x
  2. Step 2: Convert to fraction form
    8,855.05/12,220.20 = 4,875.79/x
  3. Step 3: Cross multiply
    8,855.05x = 12,220.20 × 4,875.79
  4. Step 4: Simplify right side
    8,855.05x = 59,583,128.96
  5. Step 5: Solve for x
    x = 59,583,128.96/8,855.05
  6. Step 6: Final answer
    x = 6,728.72

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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.