Home / 11,178.23-16,756.90-3,777.50

Finding the Fourth Proportional to 11,178.23, 16,756.90 and 3,777.50

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Solution

The fourth proportional to 11,178.23, 16,756.90 and 3,777.50 is: 5,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.23 : 16,756.90 = 3,777.50 : x
  2. Step 2: Convert to fraction form
    11,178.23/16,756.90 = 3,777.50/x
  3. Step 3: Cross multiply
    11,178.23x = 16,756.90 × 3,777.50
  4. Step 4: Simplify right side
    11,178.23x = 63,299,222.20
  5. Step 5: Solve for x
    x = 63,299,222.20/11,178.23
  6. Step 6: Final answer
    x = 5,662.73

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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.