Home / 8,087.17-12,113.21-3,918.44

Finding the Fourth Proportional to 8,087.17, 12,113.21 and 3,918.44

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Solution

The fourth proportional to 8,087.17, 12,113.21 and 3,918.44 is: 5,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.17 : 12,113.21 = 3,918.44 : x
  2. Step 2: Convert to fraction form
    8,087.17/12,113.21 = 3,918.44/x
  3. Step 3: Cross multiply
    8,087.17x = 12,113.21 × 3,918.44
  4. Step 4: Simplify right side
    8,087.17x = 47,464,848.75
  5. Step 5: Solve for x
    x = 47,464,848.75/8,087.17
  6. Step 6: Final answer
    x = 5,869.15

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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.