Home / 10,991.86-16,477.80-4,061.50

Finding the Fourth Proportional to 10,991.86, 16,477.80 and 4,061.50

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Solution

The fourth proportional to 10,991.86, 16,477.80 and 4,061.50 is: 6,088.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.86 : 16,477.80 = 4,061.50 : x
  2. Step 2: Convert to fraction form
    10,991.86/16,477.80 = 4,061.50/x
  3. Step 3: Cross multiply
    10,991.86x = 16,477.80 × 4,061.50
  4. Step 4: Simplify right side
    10,991.86x = 66,924,584.70
  5. Step 5: Solve for x
    x = 66,924,584.70/10,991.86
  6. Step 6: Final answer
    x = 6,088.56

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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.