Home / 12,163.40-18,237.80-4,759.04

Finding the Fourth Proportional to 12,163.40, 18,237.80 and 4,759.04

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Solution

The fourth proportional to 12,163.40, 18,237.80 and 4,759.04 is: 7,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.40 : 18,237.80 = 4,759.04 : x
  2. Step 2: Convert to fraction form
    12,163.40/18,237.80 = 4,759.04/x
  3. Step 3: Cross multiply
    12,163.40x = 18,237.80 × 4,759.04
  4. Step 4: Simplify right side
    12,163.40x = 86,794,419.71
  5. Step 5: Solve for x
    x = 86,794,419.71/12,163.40
  6. Step 6: Final answer
    x = 7,135.70

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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.