Home / 11,128.44-16,697.28-4,885.20

Finding the Fourth Proportional to 11,128.44, 16,697.28 and 4,885.20

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Solution

The fourth proportional to 11,128.44, 16,697.28 and 4,885.20 is: 7,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.44 : 16,697.28 = 4,885.20 : x
  2. Step 2: Convert to fraction form
    11,128.44/16,697.28 = 4,885.20/x
  3. Step 3: Cross multiply
    11,128.44x = 16,697.28 × 4,885.20
  4. Step 4: Simplify right side
    11,128.44x = 81,569,552.26
  5. Step 5: Solve for x
    x = 81,569,552.26/11,128.44
  6. Step 6: Final answer
    x = 7,329.83

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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.