Home / 8,649.35-11,929.71-5,961.42

Finding the Fourth Proportional to 8,649.35, 11,929.71 and 5,961.42

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Solution

The fourth proportional to 8,649.35, 11,929.71 and 5,961.42 is: 8,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.35 : 11,929.71 = 5,961.42 : x
  2. Step 2: Convert to fraction form
    8,649.35/11,929.71 = 5,961.42/x
  3. Step 3: Cross multiply
    8,649.35x = 11,929.71 × 5,961.42
  4. Step 4: Simplify right side
    8,649.35x = 71,118,011.79
  5. Step 5: Solve for x
    x = 71,118,011.79/8,649.35
  6. Step 6: Final answer
    x = 8,222.36

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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.