Home / 11,285.32-16,909.38-3,885.76

Finding the Fourth Proportional to 11,285.32, 16,909.38 and 3,885.76

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Solution

The fourth proportional to 11,285.32, 16,909.38 and 3,885.76 is: 5,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.32 : 16,909.38 = 3,885.76 : x
  2. Step 2: Convert to fraction form
    11,285.32/16,909.38 = 3,885.76/x
  3. Step 3: Cross multiply
    11,285.32x = 16,909.38 × 3,885.76
  4. Step 4: Simplify right side
    11,285.32x = 65,705,792.43
  5. Step 5: Solve for x
    x = 65,705,792.43/11,285.32
  6. Step 6: Final answer
    x = 5,822.24

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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.