Home / 12,779.27-19,173.66-5,757.17

Finding the Fourth Proportional to 12,779.27, 19,173.66 and 5,757.17

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Solution

The fourth proportional to 12,779.27, 19,173.66 and 5,757.17 is: 8,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.27 : 19,173.66 = 5,757.17 : x
  2. Step 2: Convert to fraction form
    12,779.27/19,173.66 = 5,757.17/x
  3. Step 3: Cross multiply
    12,779.27x = 19,173.66 × 5,757.17
  4. Step 4: Simplify right side
    12,779.27x = 110,385,991.36
  5. Step 5: Solve for x
    x = 110,385,991.36/12,779.27
  6. Step 6: Final answer
    x = 8,637.90

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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.