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Finding the Fourth Proportional to 12,694.34, 17,520.02 and 7,392.08

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Solution

The fourth proportional to 12,694.34, 17,520.02 and 7,392.08 is: 10,202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.34 : 17,520.02 = 7,392.08 : x
  2. Step 2: Convert to fraction form
    12,694.34/17,520.02 = 7,392.08/x
  3. Step 3: Cross multiply
    12,694.34x = 17,520.02 × 7,392.08
  4. Step 4: Simplify right side
    12,694.34x = 129,509,264.88
  5. Step 5: Solve for x
    x = 129,509,264.88/12,694.34
  6. Step 6: Final answer
    x = 10,202.13

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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.