Home / 13,129.96-19,687.38-5,730.88

Finding the Fourth Proportional to 13,129.96, 19,687.38 and 5,730.88

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Solution

The fourth proportional to 13,129.96, 19,687.38 and 5,730.88 is: 8,593.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.96 : 19,687.38 = 5,730.88 : x
  2. Step 2: Convert to fraction form
    13,129.96/19,687.38 = 5,730.88/x
  3. Step 3: Cross multiply
    13,129.96x = 19,687.38 × 5,730.88
  4. Step 4: Simplify right side
    13,129.96x = 112,826,012.29
  5. Step 5: Solve for x
    x = 112,826,012.29/13,129.96
  6. Step 6: Final answer
    x = 8,593.02

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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.