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Finding the Fourth Proportional to 12,748.23, 17,601.03 and 9,394.83

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Solution

The fourth proportional to 12,748.23, 17,601.03 and 9,394.83 is: 12,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.23 : 17,601.03 = 9,394.83 : x
  2. Step 2: Convert to fraction form
    12,748.23/17,601.03 = 9,394.83/x
  3. Step 3: Cross multiply
    12,748.23x = 17,601.03 × 9,394.83
  4. Step 4: Simplify right side
    12,748.23x = 165,358,684.67
  5. Step 5: Solve for x
    x = 165,358,684.67/12,748.23
  6. Step 6: Final answer
    x = 12,971.11

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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.