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Finding the Fourth Proportional to 9,975.87, 14,958.54 and 4,426.79

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Solution

The fourth proportional to 9,975.87, 14,958.54 and 4,426.79 is: 6,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.87 : 14,958.54 = 4,426.79 : x
  2. Step 2: Convert to fraction form
    9,975.87/14,958.54 = 4,426.79/x
  3. Step 3: Cross multiply
    9,975.87x = 14,958.54 × 4,426.79
  4. Step 4: Simplify right side
    9,975.87x = 66,218,315.29
  5. Step 5: Solve for x
    x = 66,218,315.29/9,975.87
  6. Step 6: Final answer
    x = 6,637.85

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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.