Home / 8,734.16-13,087.80-5,217.20

Finding the Fourth Proportional to 8,734.16, 13,087.80 and 5,217.20

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Solution

The fourth proportional to 8,734.16, 13,087.80 and 5,217.20 is: 7,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,734.16 : 13,087.80 = 5,217.20 : x
  2. Step 2: Convert to fraction form
    8,734.16/13,087.80 = 5,217.20/x
  3. Step 3: Cross multiply
    8,734.16x = 13,087.80 × 5,217.20
  4. Step 4: Simplify right side
    8,734.16x = 68,281,670.16
  5. Step 5: Solve for x
    x = 68,281,670.16/8,734.16
  6. Step 6: Final answer
    x = 7,817.77

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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.