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Finding the Fourth Proportional to 6,641.58, 9,939.24 and 5,457.36

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Solution

The fourth proportional to 6,641.58, 9,939.24 and 5,457.36 is: 8,167.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.58 : 9,939.24 = 5,457.36 : x
  2. Step 2: Convert to fraction form
    6,641.58/9,939.24 = 5,457.36/x
  3. Step 3: Cross multiply
    6,641.58x = 9,939.24 × 5,457.36
  4. Step 4: Simplify right side
    6,641.58x = 54,242,010.81
  5. Step 5: Solve for x
    x = 54,242,010.81/6,641.58
  6. Step 6: Final answer
    x = 8,167.03

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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.