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Finding the Fourth Proportional to 8,020.65, 11,068.06 and 4,435.40

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Solution

The fourth proportional to 8,020.65, 11,068.06 and 4,435.40 is: 6,120.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.65 : 11,068.06 = 4,435.40 : x
  2. Step 2: Convert to fraction form
    8,020.65/11,068.06 = 4,435.40/x
  3. Step 3: Cross multiply
    8,020.65x = 11,068.06 × 4,435.40
  4. Step 4: Simplify right side
    8,020.65x = 49,091,273.32
  5. Step 5: Solve for x
    x = 49,091,273.32/8,020.65
  6. Step 6: Final answer
    x = 6,120.61

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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.