Home / 7,122.57-10,662.64-5,275.02

Finding the Fourth Proportional to 7,122.57, 10,662.64 and 5,275.02

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Solution

The fourth proportional to 7,122.57, 10,662.64 and 5,275.02 is: 7,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.57 : 10,662.64 = 5,275.02 : x
  2. Step 2: Convert to fraction form
    7,122.57/10,662.64 = 5,275.02/x
  3. Step 3: Cross multiply
    7,122.57x = 10,662.64 × 5,275.02
  4. Step 4: Simplify right side
    7,122.57x = 56,245,666.05
  5. Step 5: Solve for x
    x = 56,245,666.05/7,122.57
  6. Step 6: Final answer
    x = 7,896.83

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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.