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Finding the Fourth Proportional to 16,394.91, 22,624.06 and 9,678.99

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Solution

The fourth proportional to 16,394.91, 22,624.06 and 9,678.99 is: 13,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,394.91 : 22,624.06 = 9,678.99 : x
  2. Step 2: Convert to fraction form
    16,394.91/22,624.06 = 9,678.99/x
  3. Step 3: Cross multiply
    16,394.91x = 22,624.06 × 9,678.99
  4. Step 4: Simplify right side
    16,394.91x = 218,978,129.29
  5. Step 5: Solve for x
    x = 218,978,129.29/16,394.91
  6. Step 6: Final answer
    x = 13,356.47

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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.