Home / 7,868.20-11,802.24-3,188.14

Finding the Fourth Proportional to 7,868.20, 11,802.24 and 3,188.14

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Solution

The fourth proportional to 7,868.20, 11,802.24 and 3,188.14 is: 4,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.20 : 11,802.24 = 3,188.14 : x
  2. Step 2: Convert to fraction form
    7,868.20/11,802.24 = 3,188.14/x
  3. Step 3: Cross multiply
    7,868.20x = 11,802.24 × 3,188.14
  4. Step 4: Simplify right side
    7,868.20x = 37,627,193.43
  5. Step 5: Solve for x
    x = 37,627,193.43/7,868.20
  6. Step 6: Final answer
    x = 4,782.19

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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.