Home / 8,821.41-13,214.44-5,309.55

Finding the Fourth Proportional to 8,821.41, 13,214.44 and 5,309.55

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Solution

The fourth proportional to 8,821.41, 13,214.44 and 5,309.55 is: 7,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.41 : 13,214.44 = 5,309.55 : x
  2. Step 2: Convert to fraction form
    8,821.41/13,214.44 = 5,309.55/x
  3. Step 3: Cross multiply
    8,821.41x = 13,214.44 × 5,309.55
  4. Step 4: Simplify right side
    8,821.41x = 70,162,736.54
  5. Step 5: Solve for x
    x = 70,162,736.54/8,821.41
  6. Step 6: Final answer
    x = 7,953.69

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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.