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Finding the Fourth Proportional to 13,000.66, 17,940.92 and 7,336.61

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Solution

The fourth proportional to 13,000.66, 17,940.92 and 7,336.61 is: 10,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.66 : 17,940.92 = 7,336.61 : x
  2. Step 2: Convert to fraction form
    13,000.66/17,940.92 = 7,336.61/x
  3. Step 3: Cross multiply
    13,000.66x = 17,940.92 × 7,336.61
  4. Step 4: Simplify right side
    13,000.66x = 131,625,541.25
  5. Step 5: Solve for x
    x = 131,625,541.25/13,000.66
  6. Step 6: Final answer
    x = 10,124.53

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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.