Home / 12,657.20-17,474.04-7,622.80

Finding the Fourth Proportional to 12,657.20, 17,474.04 and 7,622.80

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Solution

The fourth proportional to 12,657.20, 17,474.04 and 7,622.80 is: 10,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.20 : 17,474.04 = 7,622.80 : x
  2. Step 2: Convert to fraction form
    12,657.20/17,474.04 = 7,622.80/x
  3. Step 3: Cross multiply
    12,657.20x = 17,474.04 × 7,622.80
  4. Step 4: Simplify right side
    12,657.20x = 133,201,112.11
  5. Step 5: Solve for x
    x = 133,201,112.11/12,657.20
  6. Step 6: Final answer
    x = 10,523.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.