Home / 12,929.60-19,395.51-3,569.62

Finding the Fourth Proportional to 12,929.60, 19,395.51 and 3,569.62

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Solution

The fourth proportional to 12,929.60, 19,395.51 and 3,569.62 is: 5,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.60 : 19,395.51 = 3,569.62 : x
  2. Step 2: Convert to fraction form
    12,929.60/19,395.51 = 3,569.62/x
  3. Step 3: Cross multiply
    12,929.60x = 19,395.51 × 3,569.62
  4. Step 4: Simplify right side
    12,929.60x = 69,234,503.43
  5. Step 5: Solve for x
    x = 69,234,503.43/12,929.60
  6. Step 6: Final answer
    x = 5,354.73

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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.