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Finding the Fourth Proportional to 12,396.70, 17,105.72 and 7,292.44

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Solution

The fourth proportional to 12,396.70, 17,105.72 and 7,292.44 is: 10,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.70 : 17,105.72 = 7,292.44 : x
  2. Step 2: Convert to fraction form
    12,396.70/17,105.72 = 7,292.44/x
  3. Step 3: Cross multiply
    12,396.70x = 17,105.72 × 7,292.44
  4. Step 4: Simplify right side
    12,396.70x = 124,742,400.29
  5. Step 5: Solve for x
    x = 124,742,400.29/12,396.70
  6. Step 6: Final answer
    x = 10,062.55

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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.