Home / 12,890.58-19,321.11-5,950.50

Finding the Fourth Proportional to 12,890.58, 19,321.11 and 5,950.50

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Solution

The fourth proportional to 12,890.58, 19,321.11 and 5,950.50 is: 8,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.58 : 19,321.11 = 5,950.50 : x
  2. Step 2: Convert to fraction form
    12,890.58/19,321.11 = 5,950.50/x
  3. Step 3: Cross multiply
    12,890.58x = 19,321.11 × 5,950.50
  4. Step 4: Simplify right side
    12,890.58x = 114,970,265.06
  5. Step 5: Solve for x
    x = 114,970,265.06/12,890.58
  6. Step 6: Final answer
    x = 8,918.94

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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.