Home / 7,929.18-11,885.67-5,161.41

Finding the Fourth Proportional to 7,929.18, 11,885.67 and 5,161.41

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Solution

The fourth proportional to 7,929.18, 11,885.67 and 5,161.41 is: 7,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.18 : 11,885.67 = 5,161.41 : x
  2. Step 2: Convert to fraction form
    7,929.18/11,885.67 = 5,161.41/x
  3. Step 3: Cross multiply
    7,929.18x = 11,885.67 × 5,161.41
  4. Step 4: Simplify right side
    7,929.18x = 61,346,815.99
  5. Step 5: Solve for x
    x = 61,346,815.99/7,929.18
  6. Step 6: Final answer
    x = 7,736.84

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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.