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Finding the Fourth Proportional to 8,658.27, 12,986.10 and 2,417.67

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Solution

The fourth proportional to 8,658.27, 12,986.10 and 2,417.67 is: 3,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.27 : 12,986.10 = 2,417.67 : x
  2. Step 2: Convert to fraction form
    8,658.27/12,986.10 = 2,417.67/x
  3. Step 3: Cross multiply
    8,658.27x = 12,986.10 × 2,417.67
  4. Step 4: Simplify right side
    8,658.27x = 31,396,104.39
  5. Step 5: Solve for x
    x = 31,396,104.39/8,658.27
  6. Step 6: Final answer
    x = 3,626.14

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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.