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Finding the Fourth Proportional to 12,427.92, 17,127.99 and 9,065.34

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Solution

The fourth proportional to 12,427.92, 17,127.99 and 9,065.34 is: 12,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.92 : 17,127.99 = 9,065.34 : x
  2. Step 2: Convert to fraction form
    12,427.92/17,127.99 = 9,065.34/x
  3. Step 3: Cross multiply
    12,427.92x = 17,127.99 × 9,065.34
  4. Step 4: Simplify right side
    12,427.92x = 155,271,052.87
  5. Step 5: Solve for x
    x = 155,271,052.87/12,427.92
  6. Step 6: Final answer
    x = 12,493.73

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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.