Home / 7,664.42-11,440.69-6,575.78

Finding the Fourth Proportional to 7,664.42, 11,440.69 and 6,575.78

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Solution

The fourth proportional to 7,664.42, 11,440.69 and 6,575.78 is: 9,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.42 : 11,440.69 = 6,575.78 : x
  2. Step 2: Convert to fraction form
    7,664.42/11,440.69 = 6,575.78/x
  3. Step 3: Cross multiply
    7,664.42x = 11,440.69 × 6,575.78
  4. Step 4: Simplify right side
    7,664.42x = 75,231,509.64
  5. Step 5: Solve for x
    x = 75,231,509.64/7,664.42
  6. Step 6: Final answer
    x = 9,815.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.