Home / 8,305.18-12,457.23-4,411.78

Finding the Fourth Proportional to 8,305.18, 12,457.23 and 4,411.78

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Solution

The fourth proportional to 8,305.18, 12,457.23 and 4,411.78 is: 6,617.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.18 : 12,457.23 = 4,411.78 : x
  2. Step 2: Convert to fraction form
    8,305.18/12,457.23 = 4,411.78/x
  3. Step 3: Cross multiply
    8,305.18x = 12,457.23 × 4,411.78
  4. Step 4: Simplify right side
    8,305.18x = 54,958,558.17
  5. Step 5: Solve for x
    x = 54,958,558.17/8,305.18
  6. Step 6: Final answer
    x = 6,617.38

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Double scale
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Similar ratio
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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.