Home / 7,664.48-11,497.12-3,278.88

Finding the Fourth Proportional to 7,664.48, 11,497.12 and 3,278.88

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Solution

The fourth proportional to 7,664.48, 11,497.12 and 3,278.88 is: 4,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.48 : 11,497.12 = 3,278.88 : x
  2. Step 2: Convert to fraction form
    7,664.48/11,497.12 = 3,278.88/x
  3. Step 3: Cross multiply
    7,664.48x = 11,497.12 × 3,278.88
  4. Step 4: Simplify right side
    7,664.48x = 37,697,676.83
  5. Step 5: Solve for x
    x = 37,697,676.83/7,664.48
  6. Step 6: Final answer
    x = 4,918.49

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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.