Home / 10,779.90-16,170.54-3,384.66

Finding the Fourth Proportional to 10,779.90, 16,170.54 and 3,384.66

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Solution

The fourth proportional to 10,779.90, 16,170.54 and 3,384.66 is: 5,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.90 : 16,170.54 = 3,384.66 : x
  2. Step 2: Convert to fraction form
    10,779.90/16,170.54 = 3,384.66/x
  3. Step 3: Cross multiply
    10,779.90x = 16,170.54 × 3,384.66
  4. Step 4: Simplify right side
    10,779.90x = 54,731,779.92
  5. Step 5: Solve for x
    x = 54,731,779.92/10,779.90
  6. Step 6: Final answer
    x = 5,077.21

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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.