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Finding the Fourth Proportional to 17,867.70, 26,781.48 and 8,384.67

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Solution

The fourth proportional to 17,867.70, 26,781.48 and 8,384.67 is: 12,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,867.70 : 26,781.48 = 8,384.67 : x
  2. Step 2: Convert to fraction form
    17,867.70/26,781.48 = 8,384.67/x
  3. Step 3: Cross multiply
    17,867.70x = 26,781.48 × 8,384.67
  4. Step 4: Simplify right side
    17,867.70x = 224,553,871.91
  5. Step 5: Solve for x
    x = 224,553,871.91/17,867.70
  6. Step 6: Final answer
    x = 12,567.59

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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.