Home / 12,439.83-17,166.62-6,774.45

Finding the Fourth Proportional to 12,439.83, 17,166.62 and 6,774.45

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Solution

The fourth proportional to 12,439.83, 17,166.62 and 6,774.45 is: 9,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.83 : 17,166.62 = 6,774.45 : x
  2. Step 2: Convert to fraction form
    12,439.83/17,166.62 = 6,774.45/x
  3. Step 3: Cross multiply
    12,439.83x = 17,166.62 × 6,774.45
  4. Step 4: Simplify right side
    12,439.83x = 116,294,419.88
  5. Step 5: Solve for x
    x = 116,294,419.88/12,439.83
  6. Step 6: Final answer
    x = 9,348.56

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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.