Home / 11,977.72-17,965.65-4,955.92

Finding the Fourth Proportional to 11,977.72, 17,965.65 and 4,955.92

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Solution

The fourth proportional to 11,977.72, 17,965.65 and 4,955.92 is: 7,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.72 : 17,965.65 = 4,955.92 : x
  2. Step 2: Convert to fraction form
    11,977.72/17,965.65 = 4,955.92/x
  3. Step 3: Cross multiply
    11,977.72x = 17,965.65 × 4,955.92
  4. Step 4: Simplify right side
    11,977.72x = 89,036,324.15
  5. Step 5: Solve for x
    x = 89,036,324.15/11,977.72
  6. Step 6: Final answer
    x = 7,433.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.