Home / 12,679.14-19,020.93-4,360.02

Finding the Fourth Proportional to 12,679.14, 19,020.93 and 4,360.02

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Solution

The fourth proportional to 12,679.14, 19,020.93 and 4,360.02 is: 6,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.14 : 19,020.93 = 4,360.02 : x
  2. Step 2: Convert to fraction form
    12,679.14/19,020.93 = 4,360.02/x
  3. Step 3: Cross multiply
    12,679.14x = 19,020.93 × 4,360.02
  4. Step 4: Simplify right side
    12,679.14x = 82,931,635.22
  5. Step 5: Solve for x
    x = 82,931,635.22/12,679.14
  6. Step 6: Final answer
    x = 6,540.79

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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.