Home / 6,918.75-9,547.89-3,774.96

Finding the Fourth Proportional to 6,918.75, 9,547.89 and 3,774.96

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Solution

The fourth proportional to 6,918.75, 9,547.89 and 3,774.96 is: 5,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.75 : 9,547.89 = 3,774.96 : x
  2. Step 2: Convert to fraction form
    6,918.75/9,547.89 = 3,774.96/x
  3. Step 3: Cross multiply
    6,918.75x = 9,547.89 × 3,774.96
  4. Step 4: Simplify right side
    6,918.75x = 36,042,902.83
  5. Step 5: Solve for x
    x = 36,042,902.83/6,918.75
  6. Step 6: Final answer
    x = 5,209.45

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Double scale
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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.