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Finding the Fourth Proportional to 12,339, 17,027.76 and 6,673.71

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Solution

The fourth proportional to 12,339, 17,027.76 and 6,673.71 is: 9,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339 : 17,027.76 = 6,673.71 : x
  2. Step 2: Convert to fraction form
    12,339/17,027.76 = 6,673.71/x
  3. Step 3: Cross multiply
    12,339x = 17,027.76 × 6,673.71
  4. Step 4: Simplify right side
    12,339x = 113,638,213.68
  5. Step 5: Solve for x
    x = 113,638,213.68/12,339
  6. Step 6: Final answer
    x = 9,209.68

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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.