Home / 8,756.04-13,119.21-5,286

Finding the Fourth Proportional to 8,756.04, 13,119.21 and 5,286

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Solution

The fourth proportional to 8,756.04, 13,119.21 and 5,286 is: 7,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.04 : 13,119.21 = 5,286 : x
  2. Step 2: Convert to fraction form
    8,756.04/13,119.21 = 5,286/x
  3. Step 3: Cross multiply
    8,756.04x = 13,119.21 × 5,286
  4. Step 4: Simplify right side
    8,756.04x = 69,348,144.06
  5. Step 5: Solve for x
    x = 69,348,144.06/8,756.04
  6. Step 6: Final answer
    x = 7,920.04

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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.