Home / 8,675.84-13,012.40-2,831.16

Finding the Fourth Proportional to 8,675.84, 13,012.40 and 2,831.16

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Solution

The fourth proportional to 8,675.84, 13,012.40 and 2,831.16 is: 4,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.84 : 13,012.40 = 2,831.16 : x
  2. Step 2: Convert to fraction form
    8,675.84/13,012.40 = 2,831.16/x
  3. Step 3: Cross multiply
    8,675.84x = 13,012.40 × 2,831.16
  4. Step 4: Simplify right side
    8,675.84x = 36,840,186.38
  5. Step 5: Solve for x
    x = 36,840,186.38/8,675.84
  6. Step 6: Final answer
    x = 4,246.30

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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.