Home / 9,361.28-14,040.48-3,121.40

Finding the Fourth Proportional to 9,361.28, 14,040.48 and 3,121.40

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Solution

The fourth proportional to 9,361.28, 14,040.48 and 3,121.40 is: 4,681.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.28 : 14,040.48 = 3,121.40 : x
  2. Step 2: Convert to fraction form
    9,361.28/14,040.48 = 3,121.40/x
  3. Step 3: Cross multiply
    9,361.28x = 14,040.48 × 3,121.40
  4. Step 4: Simplify right side
    9,361.28x = 43,825,954.27
  5. Step 5: Solve for x
    x = 43,825,954.27/9,361.28
  6. Step 6: Final answer
    x = 4,681.62

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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.