Home / 8,064.90-11,128.56-4,479.84

Finding the Fourth Proportional to 8,064.90, 11,128.56 and 4,479.84

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Solution

The fourth proportional to 8,064.90, 11,128.56 and 4,479.84 is: 6,181.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.90 : 11,128.56 = 4,479.84 : x
  2. Step 2: Convert to fraction form
    8,064.90/11,128.56 = 4,479.84/x
  3. Step 3: Cross multiply
    8,064.90x = 11,128.56 × 4,479.84
  4. Step 4: Simplify right side
    8,064.90x = 49,854,151.43
  5. Step 5: Solve for x
    x = 49,854,151.43/8,064.90
  6. Step 6: Final answer
    x = 6,181.62

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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.