Home / 8,378.05-11,567.13-5,194.74

Finding the Fourth Proportional to 8,378.05, 11,567.13 and 5,194.74

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Solution

The fourth proportional to 8,378.05, 11,567.13 and 5,194.74 is: 7,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.05 : 11,567.13 = 5,194.74 : x
  2. Step 2: Convert to fraction form
    8,378.05/11,567.13 = 5,194.74/x
  3. Step 3: Cross multiply
    8,378.05x = 11,567.13 × 5,194.74
  4. Step 4: Simplify right side
    8,378.05x = 60,088,175.06
  5. Step 5: Solve for x
    x = 60,088,175.06/8,378.05
  6. Step 6: Final answer
    x = 7,172.10

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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.