Home / 16,770.48-23,142.36-9,318

Finding the Fourth Proportional to 16,770.48, 23,142.36 and 9,318

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Solution

The fourth proportional to 16,770.48, 23,142.36 and 9,318 is: 12,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770.48 : 23,142.36 = 9,318 : x
  2. Step 2: Convert to fraction form
    16,770.48/23,142.36 = 9,318/x
  3. Step 3: Cross multiply
    16,770.48x = 23,142.36 × 9,318
  4. Step 4: Simplify right side
    16,770.48x = 215,640,510.48
  5. Step 5: Solve for x
    x = 215,640,510.48/16,770.48
  6. Step 6: Final answer
    x = 12,858.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.