Home / 18,741.22-28,120.94-8,868.74

Finding the Fourth Proportional to 18,741.22, 28,120.94 and 8,868.74

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Solution

The fourth proportional to 18,741.22, 28,120.94 and 8,868.74 is: 13,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.22 : 28,120.94 = 8,868.74 : x
  2. Step 2: Convert to fraction form
    18,741.22/28,120.94 = 8,868.74/x
  3. Step 3: Cross multiply
    18,741.22x = 28,120.94 × 8,868.74
  4. Step 4: Simplify right side
    18,741.22x = 249,397,305.42
  5. Step 5: Solve for x
    x = 249,397,305.42/18,741.22
  6. Step 6: Final answer
    x = 13,307.42

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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.