Home / 12,599.20-18,895.42-3,831.76

Finding the Fourth Proportional to 12,599.20, 18,895.42 and 3,831.76

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Solution

The fourth proportional to 12,599.20, 18,895.42 and 3,831.76 is: 5,746.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.20 : 18,895.42 = 3,831.76 : x
  2. Step 2: Convert to fraction form
    12,599.20/18,895.42 = 3,831.76/x
  3. Step 3: Cross multiply
    12,599.20x = 18,895.42 × 3,831.76
  4. Step 4: Simplify right side
    12,599.20x = 72,402,714.54
  5. Step 5: Solve for x
    x = 72,402,714.54/12,599.20
  6. Step 6: Final answer
    x = 5,746.61

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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.