Home / 9,831.24-14,747.67-3,987.90

Finding the Fourth Proportional to 9,831.24, 14,747.67 and 3,987.90

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Solution

The fourth proportional to 9,831.24, 14,747.67 and 3,987.90 is: 5,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.24 : 14,747.67 = 3,987.90 : x
  2. Step 2: Convert to fraction form
    9,831.24/14,747.67 = 3,987.90/x
  3. Step 3: Cross multiply
    9,831.24x = 14,747.67 × 3,987.90
  4. Step 4: Simplify right side
    9,831.24x = 58,812,233.19
  5. Step 5: Solve for x
    x = 58,812,233.19/9,831.24
  6. Step 6: Final answer
    x = 5,982.18

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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.