Home / 11,779.66-16,251.87-7,301.78

Finding the Fourth Proportional to 11,779.66, 16,251.87 and 7,301.78

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Solution

The fourth proportional to 11,779.66, 16,251.87 and 7,301.78 is: 10,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.66 : 16,251.87 = 7,301.78 : x
  2. Step 2: Convert to fraction form
    11,779.66/16,251.87 = 7,301.78/x
  3. Step 3: Cross multiply
    11,779.66x = 16,251.87 × 7,301.78
  4. Step 4: Simplify right side
    11,779.66x = 118,667,586.40
  5. Step 5: Solve for x
    x = 118,667,586.40/11,779.66
  6. Step 6: Final answer
    x = 10,073.94

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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.