Home / 11,169.20-15,410.04-6,451.76

Finding the Fourth Proportional to 11,169.20, 15,410.04 and 6,451.76

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Solution

The fourth proportional to 11,169.20, 15,410.04 and 6,451.76 is: 8,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.20 : 15,410.04 = 6,451.76 : x
  2. Step 2: Convert to fraction form
    11,169.20/15,410.04 = 6,451.76/x
  3. Step 3: Cross multiply
    11,169.20x = 15,410.04 × 6,451.76
  4. Step 4: Simplify right side
    11,169.20x = 99,421,879.67
  5. Step 5: Solve for x
    x = 99,421,879.67/11,169.20
  6. Step 6: Final answer
    x = 8,901.43

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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.