Home / 7,678.90-11,516.68-2,997.41

Finding the Fourth Proportional to 7,678.90, 11,516.68 and 2,997.41

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Solution

The fourth proportional to 7,678.90, 11,516.68 and 2,997.41 is: 4,495.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.90 : 11,516.68 = 2,997.41 : x
  2. Step 2: Convert to fraction form
    7,678.90/11,516.68 = 2,997.41/x
  3. Step 3: Cross multiply
    7,678.90x = 11,516.68 × 2,997.41
  4. Step 4: Simplify right side
    7,678.90x = 34,520,157.96
  5. Step 5: Solve for x
    x = 34,520,157.96/7,678.90
  6. Step 6: Final answer
    x = 4,495.46

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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.