Home / 7,837.62-11,799.19-7,148.72

Finding the Fourth Proportional to 7,837.62, 11,799.19 and 7,148.72

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Solution

The fourth proportional to 7,837.62, 11,799.19 and 7,148.72 is: 10,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.62 : 11,799.19 = 7,148.72 : x
  2. Step 2: Convert to fraction form
    7,837.62/11,799.19 = 7,148.72/x
  3. Step 3: Cross multiply
    7,837.62x = 11,799.19 × 7,148.72
  4. Step 4: Simplify right side
    7,837.62x = 84,349,046.54
  5. Step 5: Solve for x
    x = 84,349,046.54/7,837.62
  6. Step 6: Final answer
    x = 10,762.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.