Home / 8,770.20-12,102.42-4,790.58

Finding the Fourth Proportional to 8,770.20, 12,102.42 and 4,790.58

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Solution

The fourth proportional to 8,770.20, 12,102.42 and 4,790.58 is: 6,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.20 : 12,102.42 = 4,790.58 : x
  2. Step 2: Convert to fraction form
    8,770.20/12,102.42 = 4,790.58/x
  3. Step 3: Cross multiply
    8,770.20x = 12,102.42 × 4,790.58
  4. Step 4: Simplify right side
    8,770.20x = 57,977,611.20
  5. Step 5: Solve for x
    x = 57,977,611.20/8,770.20
  6. Step 6: Final answer
    x = 6,610.75

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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.