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Finding the Fourth Proportional to 7,266.39, 10,888.64 and 5,408.65

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Solution

The fourth proportional to 7,266.39, 10,888.64 and 5,408.65 is: 8,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266.39 : 10,888.64 = 5,408.65 : x
  2. Step 2: Convert to fraction form
    7,266.39/10,888.64 = 5,408.65/x
  3. Step 3: Cross multiply
    7,266.39x = 10,888.64 × 5,408.65
  4. Step 4: Simplify right side
    7,266.39x = 58,892,842.74
  5. Step 5: Solve for x
    x = 58,892,842.74/7,266.39
  6. Step 6: Final answer
    x = 8,104.83

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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.