Home / 13,131.63-19,694.99-4,247.15

Finding the Fourth Proportional to 13,131.63, 19,694.99 and 4,247.15

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Solution

The fourth proportional to 13,131.63, 19,694.99 and 4,247.15 is: 6,369.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.63 : 19,694.99 = 4,247.15 : x
  2. Step 2: Convert to fraction form
    13,131.63/19,694.99 = 4,247.15/x
  3. Step 3: Cross multiply
    13,131.63x = 19,694.99 × 4,247.15
  4. Step 4: Simplify right side
    13,131.63x = 83,647,457.07
  5. Step 5: Solve for x
    x = 83,647,457.07/13,131.63
  6. Step 6: Final answer
    x = 6,369.92

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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.