Home / 18,847.62-28,275.75-8,175.74

Finding the Fourth Proportional to 18,847.62, 28,275.75 and 8,175.74

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Solution

The fourth proportional to 18,847.62, 28,275.75 and 8,175.74 is: 12,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.62 : 28,275.75 = 8,175.74 : x
  2. Step 2: Convert to fraction form
    18,847.62/28,275.75 = 8,175.74/x
  3. Step 3: Cross multiply
    18,847.62x = 28,275.75 × 8,175.74
  4. Step 4: Simplify right side
    18,847.62x = 231,175,038.93
  5. Step 5: Solve for x
    x = 231,175,038.93/18,847.62
  6. Step 6: Final answer
    x = 12,265.48

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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.