Home / 6,647.04-9,171.36-3,994.56

Finding the Fourth Proportional to 6,647.04, 9,171.36 and 3,994.56

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Solution

The fourth proportional to 6,647.04, 9,171.36 and 3,994.56 is: 5,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647.04 : 9,171.36 = 3,994.56 : x
  2. Step 2: Convert to fraction form
    6,647.04/9,171.36 = 3,994.56/x
  3. Step 3: Cross multiply
    6,647.04x = 9,171.36 × 3,994.56
  4. Step 4: Simplify right side
    6,647.04x = 36,635,547.80
  5. Step 5: Solve for x
    x = 36,635,547.80/6,647.04
  6. Step 6: Final answer
    x = 5,511.56

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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.