Home / 12,679.11-19,014.61-4,357.11

Finding the Fourth Proportional to 12,679.11, 19,014.61 and 4,357.11

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Solution

The fourth proportional to 12,679.11, 19,014.61 and 4,357.11 is: 6,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.11 : 19,014.61 = 4,357.11 : x
  2. Step 2: Convert to fraction form
    12,679.11/19,014.61 = 4,357.11/x
  3. Step 3: Cross multiply
    12,679.11x = 19,014.61 × 4,357.11
  4. Step 4: Simplify right side
    12,679.11x = 82,848,747.38
  5. Step 5: Solve for x
    x = 82,848,747.38/12,679.11
  6. Step 6: Final answer
    x = 6,534.27

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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.