Home / 12,562.90-18,831.15-4,240.04

Finding the Fourth Proportional to 12,562.90, 18,831.15 and 4,240.04

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Solution

The fourth proportional to 12,562.90, 18,831.15 and 4,240.04 is: 6,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.90 : 18,831.15 = 4,240.04 : x
  2. Step 2: Convert to fraction form
    12,562.90/18,831.15 = 4,240.04/x
  3. Step 3: Cross multiply
    12,562.90x = 18,831.15 × 4,240.04
  4. Step 4: Simplify right side
    12,562.90x = 79,844,735.09
  5. Step 5: Solve for x
    x = 79,844,735.09/12,562.90
  6. Step 6: Final answer
    x = 6,355.60

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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.