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Finding the Fourth Proportional to 8,673.13, 11,958.00 and 7,078.15

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Solution

The fourth proportional to 8,673.13, 11,958.00 and 7,078.15 is: 9,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.13 : 11,958.00 = 7,078.15 : x
  2. Step 2: Convert to fraction form
    8,673.13/11,958.00 = 7,078.15/x
  3. Step 3: Cross multiply
    8,673.13x = 11,958.00 × 7,078.15
  4. Step 4: Simplify right side
    8,673.13x = 84,640,506.10
  5. Step 5: Solve for x
    x = 84,640,506.10/8,673.13
  6. Step 6: Final answer
    x = 9,758.94

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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.