Home / 8,170.84-12,258.18-3,555.16

Finding the Fourth Proportional to 8,170.84, 12,258.18 and 3,555.16

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Solution

The fourth proportional to 8,170.84, 12,258.18 and 3,555.16 is: 5,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.84 : 12,258.18 = 3,555.16 : x
  2. Step 2: Convert to fraction form
    8,170.84/12,258.18 = 3,555.16/x
  3. Step 3: Cross multiply
    8,170.84x = 12,258.18 × 3,555.16
  4. Step 4: Simplify right side
    8,170.84x = 43,579,791.21
  5. Step 5: Solve for x
    x = 43,579,791.21/8,170.84
  6. Step 6: Final answer
    x = 5,333.58

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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.