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Finding the Fourth Proportional to 12,630.62, 17,437.74 and 11,229.50

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Solution

The fourth proportional to 12,630.62, 17,437.74 and 11,229.50 is: 15,503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.62 : 17,437.74 = 11,229.50 : x
  2. Step 2: Convert to fraction form
    12,630.62/17,437.74 = 11,229.50/x
  3. Step 3: Cross multiply
    12,630.62x = 17,437.74 × 11,229.50
  4. Step 4: Simplify right side
    12,630.62x = 195,817,101.33
  5. Step 5: Solve for x
    x = 195,817,101.33/12,630.62
  6. Step 6: Final answer
    x = 15,503.36

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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.