Home / 6,913.80-10,371.24-3,405.69

Finding the Fourth Proportional to 6,913.80, 10,371.24 and 3,405.69

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Solution

The fourth proportional to 6,913.80, 10,371.24 and 3,405.69 is: 5,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.80 : 10,371.24 = 3,405.69 : x
  2. Step 2: Convert to fraction form
    6,913.80/10,371.24 = 3,405.69/x
  3. Step 3: Cross multiply
    6,913.80x = 10,371.24 × 3,405.69
  4. Step 4: Simplify right side
    6,913.80x = 35,321,228.36
  5. Step 5: Solve for x
    x = 35,321,228.36/6,913.80
  6. Step 6: Final answer
    x = 5,108.80

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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.