Home / 10,983.75-16,468.70-9,318.46

Finding the Fourth Proportional to 10,983.75, 16,468.70 and 9,318.46

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Solution

The fourth proportional to 10,983.75, 16,468.70 and 9,318.46 is: 13,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.75 : 16,468.70 = 9,318.46 : x
  2. Step 2: Convert to fraction form
    10,983.75/16,468.70 = 9,318.46/x
  3. Step 3: Cross multiply
    10,983.75x = 16,468.70 × 9,318.46
  4. Step 4: Simplify right side
    10,983.75x = 153,462,816.56
  5. Step 5: Solve for x
    x = 153,462,816.56/10,983.75
  6. Step 6: Final answer
    x = 13,971.81

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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.