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Finding the Fourth Proportional to 12,542.99, 18,810.02 and 9,022.39

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Solution

The fourth proportional to 12,542.99, 18,810.02 and 9,022.39 is: 13,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.99 : 18,810.02 = 9,022.39 : x
  2. Step 2: Convert to fraction form
    12,542.99/18,810.02 = 9,022.39/x
  3. Step 3: Cross multiply
    12,542.99x = 18,810.02 × 9,022.39
  4. Step 4: Simplify right side
    12,542.99x = 169,711,311.88
  5. Step 5: Solve for x
    x = 169,711,311.88/12,542.99
  6. Step 6: Final answer
    x = 13,530.38

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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.