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Finding the Fourth Proportional to 12,536.99, 18,662.18 and 12,350.19

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Solution

The fourth proportional to 12,536.99, 18,662.18 and 12,350.19 is: 18,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.99 : 18,662.18 = 12,350.19 : x
  2. Step 2: Convert to fraction form
    12,536.99/18,662.18 = 12,350.19/x
  3. Step 3: Cross multiply
    12,536.99x = 18,662.18 × 12,350.19
  4. Step 4: Simplify right side
    12,536.99x = 230,481,468.81
  5. Step 5: Solve for x
    x = 230,481,468.81/12,536.99
  6. Step 6: Final answer
    x = 18,384.12

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.