Home / 11,187.72-15,435.36-6,468.66

Finding the Fourth Proportional to 11,187.72, 15,435.36 and 6,468.66

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Solution

The fourth proportional to 11,187.72, 15,435.36 and 6,468.66 is: 8,924.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.72 : 15,435.36 = 6,468.66 : x
  2. Step 2: Convert to fraction form
    11,187.72/15,435.36 = 6,468.66/x
  3. Step 3: Cross multiply
    11,187.72x = 15,435.36 × 6,468.66
  4. Step 4: Simplify right side
    11,187.72x = 99,846,095.82
  5. Step 5: Solve for x
    x = 99,846,095.82/11,187.72
  6. Step 6: Final answer
    x = 8,924.62

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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.