Home / 11,730.15-16,187.79-6,424.87

Finding the Fourth Proportional to 11,730.15, 16,187.79 and 6,424.87

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Solution

The fourth proportional to 11,730.15, 16,187.79 and 6,424.87 is: 8,866.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,730.15 : 16,187.79 = 6,424.87 : x
  2. Step 2: Convert to fraction form
    11,730.15/16,187.79 = 6,424.87/x
  3. Step 3: Cross multiply
    11,730.15x = 16,187.79 × 6,424.87
  4. Step 4: Simplify right side
    11,730.15x = 104,004,446.34
  5. Step 5: Solve for x
    x = 104,004,446.34/11,730.15
  6. Step 6: Final answer
    x = 8,866.42

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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.