Home / 10,782.54-16,173.80-2,991.35

Finding the Fourth Proportional to 10,782.54, 16,173.80 and 2,991.35

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Solution

The fourth proportional to 10,782.54, 16,173.80 and 2,991.35 is: 4,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.54 : 16,173.80 = 2,991.35 : x
  2. Step 2: Convert to fraction form
    10,782.54/16,173.80 = 2,991.35/x
  3. Step 3: Cross multiply
    10,782.54x = 16,173.80 × 2,991.35
  4. Step 4: Simplify right side
    10,782.54x = 48,381,463.67
  5. Step 5: Solve for x
    x = 48,381,463.67/10,782.54
  6. Step 6: Final answer
    x = 4,487.02

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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.