Home / 10,520.82-15,782.94-4,677.12

Finding the Fourth Proportional to 10,520.82, 15,782.94 and 4,677.12

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Solution

The fourth proportional to 10,520.82, 15,782.94 and 4,677.12 is: 7,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.82 : 15,782.94 = 4,677.12 : x
  2. Step 2: Convert to fraction form
    10,520.82/15,782.94 = 4,677.12/x
  3. Step 3: Cross multiply
    10,520.82x = 15,782.94 × 4,677.12
  4. Step 4: Simplify right side
    10,520.82x = 73,818,704.33
  5. Step 5: Solve for x
    x = 73,818,704.33/10,520.82
  6. Step 6: Final answer
    x = 7,016.44

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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.