Home / 12,351.84-18,522.15-5,328.53

Finding the Fourth Proportional to 12,351.84, 18,522.15 and 5,328.53

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Solution

The fourth proportional to 12,351.84, 18,522.15 and 5,328.53 is: 7,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.84 : 18,522.15 = 5,328.53 : x
  2. Step 2: Convert to fraction form
    12,351.84/18,522.15 = 5,328.53/x
  3. Step 3: Cross multiply
    12,351.84x = 18,522.15 × 5,328.53
  4. Step 4: Simplify right side
    12,351.84x = 98,695,831.94
  5. Step 5: Solve for x
    x = 98,695,831.94/12,351.84
  6. Step 6: Final answer
    x = 7,990.37

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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.