Home / 12,666.88-19,000.32-3,433.12

Finding the Fourth Proportional to 12,666.88, 19,000.32 and 3,433.12

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Solution

The fourth proportional to 12,666.88, 19,000.32 and 3,433.12 is: 5,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.88 : 19,000.32 = 3,433.12 : x
  2. Step 2: Convert to fraction form
    12,666.88/19,000.32 = 3,433.12/x
  3. Step 3: Cross multiply
    12,666.88x = 19,000.32 × 3,433.12
  4. Step 4: Simplify right side
    12,666.88x = 65,230,378.60
  5. Step 5: Solve for x
    x = 65,230,378.60/12,666.88
  6. Step 6: Final answer
    x = 5,149.68

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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.