Home / 8,378.87-11,561.55-4,841.39

Finding the Fourth Proportional to 8,378.87, 11,561.55 and 4,841.39

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Solution

The fourth proportional to 8,378.87, 11,561.55 and 4,841.39 is: 6,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.87 : 11,561.55 = 4,841.39 : x
  2. Step 2: Convert to fraction form
    8,378.87/11,561.55 = 4,841.39/x
  3. Step 3: Cross multiply
    8,378.87x = 11,561.55 × 4,841.39
  4. Step 4: Simplify right side
    8,378.87x = 55,973,983.30
  5. Step 5: Solve for x
    x = 55,973,983.30/8,378.87
  6. Step 6: Final answer
    x = 6,680.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.