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Finding the Fourth Proportional to 13,229.58, 18,259.65 and 7,927.48

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Solution

The fourth proportional to 13,229.58, 18,259.65 and 7,927.48 is: 10,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.58 : 18,259.65 = 7,927.48 : x
  2. Step 2: Convert to fraction form
    13,229.58/18,259.65 = 7,927.48/x
  3. Step 3: Cross multiply
    13,229.58x = 18,259.65 × 7,927.48
  4. Step 4: Simplify right side
    13,229.58x = 144,753,033.01
  5. Step 5: Solve for x
    x = 144,753,033.01/13,229.58
  6. Step 6: Final answer
    x = 10,941.62

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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.