Home / 12,161.20-16,782.42-6,572.20

Finding the Fourth Proportional to 12,161.20, 16,782.42 and 6,572.20

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Solution

The fourth proportional to 12,161.20, 16,782.42 and 6,572.20 is: 9,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.20 : 16,782.42 = 6,572.20 : x
  2. Step 2: Convert to fraction form
    12,161.20/16,782.42 = 6,572.20/x
  3. Step 3: Cross multiply
    12,161.20x = 16,782.42 × 6,572.20
  4. Step 4: Simplify right side
    12,161.20x = 110,297,420.72
  5. Step 5: Solve for x
    x = 110,297,420.72/12,161.20
  6. Step 6: Final answer
    x = 9,069.62

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1.5x scale

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.