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Finding the Fourth Proportional to 6,443.10, 9,645.12 and 5,827.08

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Solution

The fourth proportional to 6,443.10, 9,645.12 and 5,827.08 is: 8,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.10 : 9,645.12 = 5,827.08 : x
  2. Step 2: Convert to fraction form
    6,443.10/9,645.12 = 5,827.08/x
  3. Step 3: Cross multiply
    6,443.10x = 9,645.12 × 5,827.08
  4. Step 4: Simplify right side
    6,443.10x = 56,202,885.85
  5. Step 5: Solve for x
    x = 56,202,885.85/6,443.10
  6. Step 6: Final answer
    x = 8,722.96

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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.