Home / 7,929.09-11,881.49-4,231.85

Finding the Fourth Proportional to 7,929.09, 11,881.49 and 4,231.85

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Solution

The fourth proportional to 7,929.09, 11,881.49 and 4,231.85 is: 6,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.09 : 11,881.49 = 4,231.85 : x
  2. Step 2: Convert to fraction form
    7,929.09/11,881.49 = 4,231.85/x
  3. Step 3: Cross multiply
    7,929.09x = 11,881.49 × 4,231.85
  4. Step 4: Simplify right side
    7,929.09x = 50,280,602.89
  5. Step 5: Solve for x
    x = 50,280,602.89/7,929.09
  6. Step 6: Final answer
    x = 6,341.28

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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.