Home / 37,986.40-56,979.64-9,906.43

Finding the Fourth Proportional to 37,986.40, 56,979.64 and 9,906.43

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Solution

The fourth proportional to 37,986.40, 56,979.64 and 9,906.43 is: 14,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,986.40 : 56,979.64 = 9,906.43 : x
  2. Step 2: Convert to fraction form
    37,986.40/56,979.64 = 9,906.43/x
  3. Step 3: Cross multiply
    37,986.40x = 56,979.64 × 9,906.43
  4. Step 4: Simplify right side
    37,986.40x = 564,464,815.09
  5. Step 5: Solve for x
    x = 564,464,815.09/37,986.40
  6. Step 6: Final answer
    x = 14,859.66

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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.