Home / 9,227.60-12,775.56-8,766.80

Finding the Fourth Proportional to 9,227.60, 12,775.56 and 8,766.80

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Solution

The fourth proportional to 9,227.60, 12,775.56 and 8,766.80 is: 12,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,227.60 : 12,775.56 = 8,766.80 : x
  2. Step 2: Convert to fraction form
    9,227.60/12,775.56 = 8,766.80/x
  3. Step 3: Cross multiply
    9,227.60x = 12,775.56 × 8,766.80
  4. Step 4: Simplify right side
    9,227.60x = 112,000,779.41
  5. Step 5: Solve for x
    x = 112,000,779.41/9,227.60
  6. Step 6: Final answer
    x = 12,137.59

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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.