Home / 12,188.07-18,283.26-3,422.96

Finding the Fourth Proportional to 12,188.07, 18,283.26 and 3,422.96

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Solution

The fourth proportional to 12,188.07, 18,283.26 and 3,422.96 is: 5,134.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.07 : 18,283.26 = 3,422.96 : x
  2. Step 2: Convert to fraction form
    12,188.07/18,283.26 = 3,422.96/x
  3. Step 3: Cross multiply
    12,188.07x = 18,283.26 × 3,422.96
  4. Step 4: Simplify right side
    12,188.07x = 62,582,776.23
  5. Step 5: Solve for x
    x = 62,582,776.23/12,188.07
  6. Step 6: Final answer
    x = 5,134.76

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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.