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Finding the Fourth Proportional to 6,899.92, 10,347.48 and 6,457.05

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Solution

The fourth proportional to 6,899.92, 10,347.48 and 6,457.05 is: 9,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.92 : 10,347.48 = 6,457.05 : x
  2. Step 2: Convert to fraction form
    6,899.92/10,347.48 = 6,457.05/x
  3. Step 3: Cross multiply
    6,899.92x = 10,347.48 × 6,457.05
  4. Step 4: Simplify right side
    6,899.92x = 66,814,195.73
  5. Step 5: Solve for x
    x = 66,814,195.73/6,899.92
  6. Step 6: Final answer
    x = 9,683.33

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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.