Home / 13,285.29-19,929.29-4,520.82

Finding the Fourth Proportional to 13,285.29, 19,929.29 and 4,520.82

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Solution

The fourth proportional to 13,285.29, 19,929.29 and 4,520.82 is: 6,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.29 : 19,929.29 = 4,520.82 : x
  2. Step 2: Convert to fraction form
    13,285.29/19,929.29 = 4,520.82/x
  3. Step 3: Cross multiply
    13,285.29x = 19,929.29 × 4,520.82
  4. Step 4: Simplify right side
    13,285.29x = 90,096,710.21
  5. Step 5: Solve for x
    x = 90,096,710.21/13,285.29
  6. Step 6: Final answer
    x = 6,781.69

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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.