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Finding the Fourth Proportional to 12,634.69, 18,952.08 and 12,330.22

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Solution

The fourth proportional to 12,634.69, 18,952.08 and 12,330.22 is: 18,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.69 : 18,952.08 = 12,330.22 : x
  2. Step 2: Convert to fraction form
    12,634.69/18,952.08 = 12,330.22/x
  3. Step 3: Cross multiply
    12,634.69x = 18,952.08 × 12,330.22
  4. Step 4: Simplify right side
    12,634.69x = 233,683,315.86
  5. Step 5: Solve for x
    x = 233,683,315.86/12,634.69
  6. Step 6: Final answer
    x = 18,495.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.