Home / 10,238.58-15,344.46-9,981

Finding the Fourth Proportional to 10,238.58, 15,344.46 and 9,981

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Solution

The fourth proportional to 10,238.58, 15,344.46 and 9,981 is: 14,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.58 : 15,344.46 = 9,981 : x
  2. Step 2: Convert to fraction form
    10,238.58/15,344.46 = 9,981/x
  3. Step 3: Cross multiply
    10,238.58x = 15,344.46 × 9,981
  4. Step 4: Simplify right side
    10,238.58x = 153,153,055.26
  5. Step 5: Solve for x
    x = 153,153,055.26/10,238.58
  6. Step 6: Final answer
    x = 14,958.43

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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.