Home / 9,324.78-12,874.40-7,196.55

Finding the Fourth Proportional to 9,324.78, 12,874.40 and 7,196.55

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Solution

The fourth proportional to 9,324.78, 12,874.40 and 7,196.55 is: 9,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,324.78 : 12,874.40 = 7,196.55 : x
  2. Step 2: Convert to fraction form
    9,324.78/12,874.40 = 7,196.55/x
  3. Step 3: Cross multiply
    9,324.78x = 12,874.40 × 7,196.55
  4. Step 4: Simplify right side
    9,324.78x = 92,651,227.34
  5. Step 5: Solve for x
    x = 92,651,227.34/9,324.78
  6. Step 6: Final answer
    x = 9,936.02

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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.