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Finding the Fourth Proportional to 12,344.60, 17,035.42 and 7,039.28

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Solution

The fourth proportional to 12,344.60, 17,035.42 and 7,039.28 is: 9,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.60 : 17,035.42 = 7,039.28 : x
  2. Step 2: Convert to fraction form
    12,344.60/17,035.42 = 7,039.28/x
  3. Step 3: Cross multiply
    12,344.60x = 17,035.42 × 7,039.28
  4. Step 4: Simplify right side
    12,344.60x = 119,917,091.30
  5. Step 5: Solve for x
    x = 119,917,091.30/12,344.60
  6. Step 6: Final answer
    x = 9,714.13

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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.