Home / 18,764.08-28,146.12-7,074.57

Finding the Fourth Proportional to 18,764.08, 28,146.12 and 7,074.57

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Solution

The fourth proportional to 18,764.08, 28,146.12 and 7,074.57 is: 10,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.08 : 28,146.12 = 7,074.57 : x
  2. Step 2: Convert to fraction form
    18,764.08/28,146.12 = 7,074.57/x
  3. Step 3: Cross multiply
    18,764.08x = 28,146.12 × 7,074.57
  4. Step 4: Simplify right side
    18,764.08x = 199,121,696.17
  5. Step 5: Solve for x
    x = 199,121,696.17/18,764.08
  6. Step 6: Final answer
    x = 10,611.86

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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.