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Finding the Fourth Proportional to 8,769.92, 12,101.86 and 4,790.19

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Solution

The fourth proportional to 8,769.92, 12,101.86 and 4,790.19 is: 6,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.92 : 12,101.86 = 4,790.19 : x
  2. Step 2: Convert to fraction form
    8,769.92/12,101.86 = 4,790.19/x
  3. Step 3: Cross multiply
    8,769.92x = 12,101.86 × 4,790.19
  4. Step 4: Simplify right side
    8,769.92x = 57,970,196.78
  5. Step 5: Solve for x
    x = 57,970,196.78/8,769.92
  6. Step 6: Final answer
    x = 6,610.12

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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.