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Finding the Fourth Proportional to 7,305.08, 10,049.12 and 6,404.76

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Solution

The fourth proportional to 7,305.08, 10,049.12 and 6,404.76 is: 8,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.08 : 10,049.12 = 6,404.76 : x
  2. Step 2: Convert to fraction form
    7,305.08/10,049.12 = 6,404.76/x
  3. Step 3: Cross multiply
    7,305.08x = 10,049.12 × 6,404.76
  4. Step 4: Simplify right side
    7,305.08x = 64,362,201.81
  5. Step 5: Solve for x
    x = 64,362,201.81/7,305.08
  6. Step 6: Final answer
    x = 8,810.61

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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.