Home / 6,121.20-9,172.20-5,295.60

Finding the Fourth Proportional to 6,121.20, 9,172.20 and 5,295.60

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Solution

The fourth proportional to 6,121.20, 9,172.20 and 5,295.60 is: 7,935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.20 : 9,172.20 = 5,295.60 : x
  2. Step 2: Convert to fraction form
    6,121.20/9,172.20 = 5,295.60/x
  3. Step 3: Cross multiply
    6,121.20x = 9,172.20 × 5,295.60
  4. Step 4: Simplify right side
    6,121.20x = 48,572,302.32
  5. Step 5: Solve for x
    x = 48,572,302.32/6,121.20
  6. Step 6: Final answer
    x = 7,935.09

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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.