Home / 12,442.56-17,169.84-7,137.24

Finding the Fourth Proportional to 12,442.56, 17,169.84 and 7,137.24

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Solution

The fourth proportional to 12,442.56, 17,169.84 and 7,137.24 is: 9,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.56 : 17,169.84 = 7,137.24 : x
  2. Step 2: Convert to fraction form
    12,442.56/17,169.84 = 7,137.24/x
  3. Step 3: Cross multiply
    12,442.56x = 17,169.84 × 7,137.24
  4. Step 4: Simplify right side
    12,442.56x = 122,545,268.84
  5. Step 5: Solve for x
    x = 122,545,268.84/12,442.56
  6. Step 6: Final answer
    x = 9,848.88

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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.