Home / 7,929.26-11,885.31-5,157.92

Finding the Fourth Proportional to 7,929.26, 11,885.31 and 5,157.92

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Solution

The fourth proportional to 7,929.26, 11,885.31 and 5,157.92 is: 7,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.26 : 11,885.31 = 5,157.92 : x
  2. Step 2: Convert to fraction form
    7,929.26/11,885.31 = 5,157.92/x
  3. Step 3: Cross multiply
    7,929.26x = 11,885.31 × 5,157.92
  4. Step 4: Simplify right side
    7,929.26x = 61,303,418.73
  5. Step 5: Solve for x
    x = 61,303,418.73/7,929.26
  6. Step 6: Final answer
    x = 7,731.29

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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.