Home / 13,619.92-20,417.72-5,824.72

Finding the Fourth Proportional to 13,619.92, 20,417.72 and 5,824.72

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Solution

The fourth proportional to 13,619.92, 20,417.72 and 5,824.72 is: 8,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.92 : 20,417.72 = 5,824.72 : x
  2. Step 2: Convert to fraction form
    13,619.92/20,417.72 = 5,824.72/x
  3. Step 3: Cross multiply
    13,619.92x = 20,417.72 × 5,824.72
  4. Step 4: Simplify right side
    13,619.92x = 118,927,502.04
  5. Step 5: Solve for x
    x = 118,927,502.04/13,619.92
  6. Step 6: Final answer
    x = 8,731.88

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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.