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Finding the Fourth Proportional to 6,615.65, 9,927.36 and 2,668.79

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Solution

The fourth proportional to 6,615.65, 9,927.36 and 2,668.79 is: 4,004.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.65 : 9,927.36 = 2,668.79 : x
  2. Step 2: Convert to fraction form
    6,615.65/9,927.36 = 2,668.79/x
  3. Step 3: Cross multiply
    6,615.65x = 9,927.36 × 2,668.79
  4. Step 4: Simplify right side
    6,615.65x = 26,493,989.46
  5. Step 5: Solve for x
    x = 26,493,989.46/6,615.65
  6. Step 6: Final answer
    x = 4,004.75

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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.