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Finding the Fourth Proportional to 6,516.96, 9,000.79 and 4,388.79

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Solution

The fourth proportional to 6,516.96, 9,000.79 and 4,388.79 is: 6,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.96 : 9,000.79 = 4,388.79 : x
  2. Step 2: Convert to fraction form
    6,516.96/9,000.79 = 4,388.79/x
  3. Step 3: Cross multiply
    6,516.96x = 9,000.79 × 4,388.79
  4. Step 4: Simplify right side
    6,516.96x = 39,502,564.88
  5. Step 5: Solve for x
    x = 39,502,564.88/6,516.96
  6. Step 6: Final answer
    x = 6,061.51

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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.