Home / 7,127.52-10,620.24-6,351.60

Finding the Fourth Proportional to 7,127.52, 10,620.24 and 6,351.60

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Solution

The fourth proportional to 7,127.52, 10,620.24 and 6,351.60 is: 9,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.52 : 10,620.24 = 6,351.60 : x
  2. Step 2: Convert to fraction form
    7,127.52/10,620.24 = 6,351.60/x
  3. Step 3: Cross multiply
    7,127.52x = 10,620.24 × 6,351.60
  4. Step 4: Simplify right side
    7,127.52x = 67,455,516.38
  5. Step 5: Solve for x
    x = 67,455,516.38/7,127.52
  6. Step 6: Final answer
    x = 9,464.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.