Home / 11,114.28-15,337.26-6,399.36

Finding the Fourth Proportional to 11,114.28, 15,337.26 and 6,399.36

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Solution

The fourth proportional to 11,114.28, 15,337.26 and 6,399.36 is: 8,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.28 : 15,337.26 = 6,399.36 : x
  2. Step 2: Convert to fraction form
    11,114.28/15,337.26 = 6,399.36/x
  3. Step 3: Cross multiply
    11,114.28x = 15,337.26 × 6,399.36
  4. Step 4: Simplify right side
    11,114.28x = 98,148,648.15
  5. Step 5: Solve for x
    x = 98,148,648.15/11,114.28
  6. Step 6: Final answer
    x = 8,830.86

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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.