Home / 11,779.17-17,639.60-8,651.76

Finding the Fourth Proportional to 11,779.17, 17,639.60 and 8,651.76

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Solution

The fourth proportional to 11,779.17, 17,639.60 and 8,651.76 is: 12,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,779.17 : 17,639.60 = 8,651.76 : x
  2. Step 2: Convert to fraction form
    11,779.17/17,639.60 = 8,651.76/x
  3. Step 3: Cross multiply
    11,779.17x = 17,639.60 × 8,651.76
  4. Step 4: Simplify right side
    11,779.17x = 152,613,542.44
  5. Step 5: Solve for x
    x = 152,613,542.44/11,779.17
  6. Step 6: Final answer
    x = 12,956.22

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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.