Home / 11,930.64-16,464.78-6,625.50

Finding the Fourth Proportional to 11,930.64, 16,464.78 and 6,625.50

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Solution

The fourth proportional to 11,930.64, 16,464.78 and 6,625.50 is: 9,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.64 : 16,464.78 = 6,625.50 : x
  2. Step 2: Convert to fraction form
    11,930.64/16,464.78 = 6,625.50/x
  3. Step 3: Cross multiply
    11,930.64x = 16,464.78 × 6,625.50
  4. Step 4: Simplify right side
    11,930.64x = 109,087,399.89
  5. Step 5: Solve for x
    x = 109,087,399.89/11,930.64
  6. Step 6: Final answer
    x = 9,143.47

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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.