Home / 12,440.78-17,168.01-6,775.62

Finding the Fourth Proportional to 12,440.78, 17,168.01 and 6,775.62

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Solution

The fourth proportional to 12,440.78, 17,168.01 and 6,775.62 is: 9,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.78 : 17,168.01 = 6,775.62 : x
  2. Step 2: Convert to fraction form
    12,440.78/17,168.01 = 6,775.62/x
  3. Step 3: Cross multiply
    12,440.78x = 17,168.01 × 6,775.62
  4. Step 4: Simplify right side
    12,440.78x = 116,323,911.92
  5. Step 5: Solve for x
    x = 116,323,911.92/12,440.78
  6. Step 6: Final answer
    x = 9,350.21

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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.