Home / 12,175.10-16,764.15-10,378.55

Finding the Fourth Proportional to 12,175.10, 16,764.15 and 10,378.55

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Solution

The fourth proportional to 12,175.10, 16,764.15 and 10,378.55 is: 14,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.10 : 16,764.15 = 10,378.55 : x
  2. Step 2: Convert to fraction form
    12,175.10/16,764.15 = 10,378.55/x
  3. Step 3: Cross multiply
    12,175.10x = 16,764.15 × 10,378.55
  4. Step 4: Simplify right side
    12,175.10x = 173,987,485.16
  5. Step 5: Solve for x
    x = 173,987,485.16/12,175.10
  6. Step 6: Final answer
    x = 14,290.44

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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.