Home / 12,960.99-19,444.57-4,195.90

Finding the Fourth Proportional to 12,960.99, 19,444.57 and 4,195.90

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Solution

The fourth proportional to 12,960.99, 19,444.57 and 4,195.90 is: 6,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960.99 : 19,444.57 = 4,195.90 : x
  2. Step 2: Convert to fraction form
    12,960.99/19,444.57 = 4,195.90/x
  3. Step 3: Cross multiply
    12,960.99x = 19,444.57 × 4,195.90
  4. Step 4: Simplify right side
    12,960.99x = 81,587,515.11
  5. Step 5: Solve for x
    x = 81,587,515.11/12,960.99
  6. Step 6: Final answer
    x = 6,294.85

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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.