Home / 7,647.20-11,474.04-4,180.40

Finding the Fourth Proportional to 7,647.20, 11,474.04 and 4,180.40

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Solution

The fourth proportional to 7,647.20, 11,474.04 and 4,180.40 is: 6,272.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.20 : 11,474.04 = 4,180.40 : x
  2. Step 2: Convert to fraction form
    7,647.20/11,474.04 = 4,180.40/x
  3. Step 3: Cross multiply
    7,647.20x = 11,474.04 × 4,180.40
  4. Step 4: Simplify right side
    7,647.20x = 47,966,076.82
  5. Step 5: Solve for x
    x = 47,966,076.82/7,647.20
  6. Step 6: Final answer
    x = 6,272.37

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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.