Home / 10,520.88-15,776.46-3,942.36

Finding the Fourth Proportional to 10,520.88, 15,776.46 and 3,942.36

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Solution

The fourth proportional to 10,520.88, 15,776.46 and 3,942.36 is: 5,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.88 : 15,776.46 = 3,942.36 : x
  2. Step 2: Convert to fraction form
    10,520.88/15,776.46 = 3,942.36/x
  3. Step 3: Cross multiply
    10,520.88x = 15,776.46 × 3,942.36
  4. Step 4: Simplify right side
    10,520.88x = 62,196,484.85
  5. Step 5: Solve for x
    x = 62,196,484.85/10,520.88
  6. Step 6: Final answer
    x = 5,911.72

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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.