Home / 8,665.22-12,996.39-3,117.53

Finding the Fourth Proportional to 8,665.22, 12,996.39 and 3,117.53

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Solution

The fourth proportional to 8,665.22, 12,996.39 and 3,117.53 is: 4,675.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.22 : 12,996.39 = 3,117.53 : x
  2. Step 2: Convert to fraction form
    8,665.22/12,996.39 = 3,117.53/x
  3. Step 3: Cross multiply
    8,665.22x = 12,996.39 × 3,117.53
  4. Step 4: Simplify right side
    8,665.22x = 40,516,570.73
  5. Step 5: Solve for x
    x = 40,516,570.73/8,665.22
  6. Step 6: Final answer
    x = 4,675.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.