Home / 11,730.32-16,187.89-6,425.09

Finding the Fourth Proportional to 11,730.32, 16,187.89 and 6,425.09

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Solution

The fourth proportional to 11,730.32, 16,187.89 and 6,425.09 is: 8,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,730.32 : 16,187.89 = 6,425.09 : x
  2. Step 2: Convert to fraction form
    11,730.32/16,187.89 = 6,425.09/x
  3. Step 3: Cross multiply
    11,730.32x = 16,187.89 × 6,425.09
  4. Step 4: Simplify right side
    11,730.32x = 104,008,650.16
  5. Step 5: Solve for x
    x = 104,008,650.16/11,730.32
  6. Step 6: Final answer
    x = 8,866.65

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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.