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Finding the Fourth Proportional to 12,339.95, 18,550.06 and 9,901.49

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Solution

The fourth proportional to 12,339.95, 18,550.06 and 9,901.49 is: 14,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.95 : 18,550.06 = 9,901.49 : x
  2. Step 2: Convert to fraction form
    12,339.95/18,550.06 = 9,901.49/x
  3. Step 3: Cross multiply
    12,339.95x = 18,550.06 × 9,901.49
  4. Step 4: Simplify right side
    12,339.95x = 183,673,116.09
  5. Step 5: Solve for x
    x = 183,673,116.09/12,339.95
  6. Step 6: Final answer
    x = 14,884.44

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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.