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Finding the Fourth Proportional to 12,630.61, 17,434.07 and 7,326.73

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Solution

The fourth proportional to 12,630.61, 17,434.07 and 7,326.73 is: 10,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.61 : 17,434.07 = 7,326.73 : x
  2. Step 2: Convert to fraction form
    12,630.61/17,434.07 = 7,326.73/x
  3. Step 3: Cross multiply
    12,630.61x = 17,434.07 × 7,326.73
  4. Step 4: Simplify right side
    12,630.61x = 127,734,723.69
  5. Step 5: Solve for x
    x = 127,734,723.69/12,630.61
  6. Step 6: Final answer
    x = 10,113.11

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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.