Home / 8,675.87-13,016.54-2,831.12

Finding the Fourth Proportional to 8,675.87, 13,016.54 and 2,831.12

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Solution

The fourth proportional to 8,675.87, 13,016.54 and 2,831.12 is: 4,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.87 : 13,016.54 = 2,831.12 : x
  2. Step 2: Convert to fraction form
    8,675.87/13,016.54 = 2,831.12/x
  3. Step 3: Cross multiply
    8,675.87x = 13,016.54 × 2,831.12
  4. Step 4: Simplify right side
    8,675.87x = 36,851,328.72
  5. Step 5: Solve for x
    x = 36,851,328.72/8,675.87
  6. Step 6: Final answer
    x = 4,247.56

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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.