Home / 10,722.61-16,089.96-8,376.03

Finding the Fourth Proportional to 10,722.61, 16,089.96 and 8,376.03

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Solution

The fourth proportional to 10,722.61, 16,089.96 and 8,376.03 is: 12,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.61 : 16,089.96 = 8,376.03 : x
  2. Step 2: Convert to fraction form
    10,722.61/16,089.96 = 8,376.03/x
  3. Step 3: Cross multiply
    10,722.61x = 16,089.96 × 8,376.03
  4. Step 4: Simplify right side
    10,722.61x = 134,770,017.21
  5. Step 5: Solve for x
    x = 134,770,017.21/10,722.61
  6. Step 6: Final answer
    x = 12,568.77

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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.