Home / 12,739.14-17,579.52-7,436.88

Finding the Fourth Proportional to 12,739.14, 17,579.52 and 7,436.88

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Solution

The fourth proportional to 12,739.14, 17,579.52 and 7,436.88 is: 10,262.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.14 : 17,579.52 = 7,436.88 : x
  2. Step 2: Convert to fraction form
    12,739.14/17,579.52 = 7,436.88/x
  3. Step 3: Cross multiply
    12,739.14x = 17,579.52 × 7,436.88
  4. Step 4: Simplify right side
    12,739.14x = 130,736,780.70
  5. Step 5: Solve for x
    x = 130,736,780.70/12,739.14
  6. Step 6: Final answer
    x = 10,262.61

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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.