Home / 8,176.38-12,196.68-7,903.05

Finding the Fourth Proportional to 8,176.38, 12,196.68 and 7,903.05

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Solution

The fourth proportional to 8,176.38, 12,196.68 and 7,903.05 is: 11,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.38 : 12,196.68 = 7,903.05 : x
  2. Step 2: Convert to fraction form
    8,176.38/12,196.68 = 7,903.05/x
  3. Step 3: Cross multiply
    8,176.38x = 12,196.68 × 7,903.05
  4. Step 4: Simplify right side
    8,176.38x = 96,390,971.87
  5. Step 5: Solve for x
    x = 96,390,971.87/8,176.38
  6. Step 6: Final answer
    x = 11,788.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.