Home / 8,675.88-13,012.40-2,831.06

Finding the Fourth Proportional to 8,675.88, 13,012.40 and 2,831.06

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Solution

The fourth proportional to 8,675.88, 13,012.40 and 2,831.06 is: 4,246.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.88 : 13,012.40 = 2,831.06 : x
  2. Step 2: Convert to fraction form
    8,675.88/13,012.40 = 2,831.06/x
  3. Step 3: Cross multiply
    8,675.88x = 13,012.40 × 2,831.06
  4. Step 4: Simplify right side
    8,675.88x = 36,838,885.14
  5. Step 5: Solve for x
    x = 36,838,885.14/8,675.88
  6. Step 6: Final answer
    x = 4,246.13

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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.