Home / 7,640.06-10,537.29-5,121.36

Finding the Fourth Proportional to 7,640.06, 10,537.29 and 5,121.36

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Solution

The fourth proportional to 7,640.06, 10,537.29 and 5,121.36 is: 7,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.06 : 10,537.29 = 5,121.36 : x
  2. Step 2: Convert to fraction form
    7,640.06/10,537.29 = 5,121.36/x
  3. Step 3: Cross multiply
    7,640.06x = 10,537.29 × 5,121.36
  4. Step 4: Simplify right side
    7,640.06x = 53,965,255.51
  5. Step 5: Solve for x
    x = 53,965,255.51/7,640.06
  6. Step 6: Final answer
    x = 7,063.46

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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.