Home / 10,905.20-16,357.80-3,510.24

Finding the Fourth Proportional to 10,905.20, 16,357.80 and 3,510.24

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Solution

The fourth proportional to 10,905.20, 16,357.80 and 3,510.24 is: 5,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.20 : 16,357.80 = 3,510.24 : x
  2. Step 2: Convert to fraction form
    10,905.20/16,357.80 = 3,510.24/x
  3. Step 3: Cross multiply
    10,905.20x = 16,357.80 × 3,510.24
  4. Step 4: Simplify right side
    10,905.20x = 57,419,755.69
  5. Step 5: Solve for x
    x = 57,419,755.69/10,905.20
  6. Step 6: Final answer
    x = 5,265.36

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1.5x scale

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.