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Finding the Fourth Proportional to 8,693.79, 13,040.76 and 5,751.11

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Solution

The fourth proportional to 8,693.79, 13,040.76 and 5,751.11 is: 8,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.79 : 13,040.76 = 5,751.11 : x
  2. Step 2: Convert to fraction form
    8,693.79/13,040.76 = 5,751.11/x
  3. Step 3: Cross multiply
    8,693.79x = 13,040.76 × 5,751.11
  4. Step 4: Simplify right side
    8,693.79x = 74,998,780.04
  5. Step 5: Solve for x
    x = 74,998,780.04/8,693.79
  6. Step 6: Final answer
    x = 8,626.71

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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.