Home / 7,972.20-11,005.62-6,175.68

Finding the Fourth Proportional to 7,972.20, 11,005.62 and 6,175.68

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Solution

The fourth proportional to 7,972.20, 11,005.62 and 6,175.68 is: 8,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.20 : 11,005.62 = 6,175.68 : x
  2. Step 2: Convert to fraction form
    7,972.20/11,005.62 = 6,175.68/x
  3. Step 3: Cross multiply
    7,972.20x = 11,005.62 × 6,175.68
  4. Step 4: Simplify right side
    7,972.20x = 67,967,187.32
  5. Step 5: Solve for x
    x = 67,967,187.32/7,972.20
  6. Step 6: Final answer
    x = 8,525.52

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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.