Home / 10,783.13-16,174.70-2,991.95

Finding the Fourth Proportional to 10,783.13, 16,174.70 and 2,991.95

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Solution

The fourth proportional to 10,783.13, 16,174.70 and 2,991.95 is: 4,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.13 : 16,174.70 = 2,991.95 : x
  2. Step 2: Convert to fraction form
    10,783.13/16,174.70 = 2,991.95/x
  3. Step 3: Cross multiply
    10,783.13x = 16,174.70 × 2,991.95
  4. Step 4: Simplify right side
    10,783.13x = 48,393,797.83
  5. Step 5: Solve for x
    x = 48,393,797.83/10,783.13
  6. Step 6: Final answer
    x = 4,487.92

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1.5x scale

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.