Home / 8,529.23-12,781.40-3,779.66

Finding the Fourth Proportional to 8,529.23, 12,781.40 and 3,779.66

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Solution

The fourth proportional to 8,529.23, 12,781.40 and 3,779.66 is: 5,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.23 : 12,781.40 = 3,779.66 : x
  2. Step 2: Convert to fraction form
    8,529.23/12,781.40 = 3,779.66/x
  3. Step 3: Cross multiply
    8,529.23x = 12,781.40 × 3,779.66
  4. Step 4: Simplify right side
    8,529.23x = 48,309,263.52
  5. Step 5: Solve for x
    x = 48,309,263.52/8,529.23
  6. Step 6: Final answer
    x = 5,663.97

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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.