Home / 11,142.85-15,373.34-6,359.37

Finding the Fourth Proportional to 11,142.85, 15,373.34 and 6,359.37

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Solution

The fourth proportional to 11,142.85, 15,373.34 and 6,359.37 is: 8,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.85 : 15,373.34 = 6,359.37 : x
  2. Step 2: Convert to fraction form
    11,142.85/15,373.34 = 6,359.37/x
  3. Step 3: Cross multiply
    11,142.85x = 15,373.34 × 6,359.37
  4. Step 4: Simplify right side
    11,142.85x = 97,764,757.20
  5. Step 5: Solve for x
    x = 97,764,757.20/11,142.85
  6. Step 6: Final answer
    x = 8,773.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.