Home / 13,219.86-19,829.17-3,359.32

Finding the Fourth Proportional to 13,219.86, 19,829.17 and 3,359.32

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Solution

The fourth proportional to 13,219.86, 19,829.17 and 3,359.32 is: 5,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.86 : 19,829.17 = 3,359.32 : x
  2. Step 2: Convert to fraction form
    13,219.86/19,829.17 = 3,359.32/x
  3. Step 3: Cross multiply
    13,219.86x = 19,829.17 × 3,359.32
  4. Step 4: Simplify right side
    13,219.86x = 66,612,527.36
  5. Step 5: Solve for x
    x = 66,612,527.36/13,219.86
  6. Step 6: Final answer
    x = 5,038.82

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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.