Home / 7,121.26-10,672.59-5,153.51

Finding the Fourth Proportional to 7,121.26, 10,672.59 and 5,153.51

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Solution

The fourth proportional to 7,121.26, 10,672.59 and 5,153.51 is: 7,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.26 : 10,672.59 = 5,153.51 : x
  2. Step 2: Convert to fraction form
    7,121.26/10,672.59 = 5,153.51/x
  3. Step 3: Cross multiply
    7,121.26x = 10,672.59 × 5,153.51
  4. Step 4: Simplify right side
    7,121.26x = 55,001,325.97
  5. Step 5: Solve for x
    x = 55,001,325.97/7,121.26
  6. Step 6: Final answer
    x = 7,723.54

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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.