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Finding the Fourth Proportional to 6,918.98, 9,547.00 and 3,893.69

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Solution

The fourth proportional to 6,918.98, 9,547.00 and 3,893.69 is: 5,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.98 : 9,547.00 = 3,893.69 : x
  2. Step 2: Convert to fraction form
    6,918.98/9,547.00 = 3,893.69/x
  3. Step 3: Cross multiply
    6,918.98x = 9,547.00 × 3,893.69
  4. Step 4: Simplify right side
    6,918.98x = 37,173,000.96
  5. Step 5: Solve for x
    x = 37,173,000.96/6,918.98
  6. Step 6: Final answer
    x = 5,372.61

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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.