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Finding the Fourth Proportional to 13,203.81, 18,200.84 and 9,841.50

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Solution

The fourth proportional to 13,203.81, 18,200.84 and 9,841.50 is: 13,566.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.81 : 18,200.84 = 9,841.50 : x
  2. Step 2: Convert to fraction form
    13,203.81/18,200.84 = 9,841.50/x
  3. Step 3: Cross multiply
    13,203.81x = 18,200.84 × 9,841.50
  4. Step 4: Simplify right side
    13,203.81x = 179,123,517.65
  5. Step 5: Solve for x
    x = 179,123,517.65/13,203.81
  6. Step 6: Final answer
    x = 13,566.05

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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.