Home / 11,134.08-15,375.36-8,334.72

Finding the Fourth Proportional to 11,134.08, 15,375.36 and 8,334.72

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Solution

The fourth proportional to 11,134.08, 15,375.36 and 8,334.72 is: 11,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.08 : 15,375.36 = 8,334.72 : x
  2. Step 2: Convert to fraction form
    11,134.08/15,375.36 = 8,334.72/x
  3. Step 3: Cross multiply
    11,134.08x = 15,375.36 × 8,334.72
  4. Step 4: Simplify right side
    11,134.08x = 128,149,320.50
  5. Step 5: Solve for x
    x = 128,149,320.50/11,134.08
  6. Step 6: Final answer
    x = 11,509.65

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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.