Home / 12,175.88-16,803.21-6,870.69

Finding the Fourth Proportional to 12,175.88, 16,803.21 and 6,870.69

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Solution

The fourth proportional to 12,175.88, 16,803.21 and 6,870.69 is: 9,481.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.88 : 16,803.21 = 6,870.69 : x
  2. Step 2: Convert to fraction form
    12,175.88/16,803.21 = 6,870.69/x
  3. Step 3: Cross multiply
    12,175.88x = 16,803.21 × 6,870.69
  4. Step 4: Simplify right side
    12,175.88x = 115,449,646.91
  5. Step 5: Solve for x
    x = 115,449,646.91/12,175.88
  6. Step 6: Final answer
    x = 9,481.84

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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.