Home / 18,834.71-28,217.62-8,821.08

Finding the Fourth Proportional to 18,834.71, 28,217.62 and 8,821.08

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Solution

The fourth proportional to 18,834.71, 28,217.62 and 8,821.08 is: 13,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.71 : 28,217.62 = 8,821.08 : x
  2. Step 2: Convert to fraction form
    18,834.71/28,217.62 = 8,821.08/x
  3. Step 3: Cross multiply
    18,834.71x = 28,217.62 × 8,821.08
  4. Step 4: Simplify right side
    18,834.71x = 248,909,883.43
  5. Step 5: Solve for x
    x = 248,909,883.43/18,834.71
  6. Step 6: Final answer
    x = 13,215.49

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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.