Home / 12,874.24-19,313.88-4,109.68

Finding the Fourth Proportional to 12,874.24, 19,313.88 and 4,109.68

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Solution

The fourth proportional to 12,874.24, 19,313.88 and 4,109.68 is: 6,165.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.24 : 19,313.88 = 4,109.68 : x
  2. Step 2: Convert to fraction form
    12,874.24/19,313.88 = 4,109.68/x
  3. Step 3: Cross multiply
    12,874.24x = 19,313.88 × 4,109.68
  4. Step 4: Simplify right side
    12,874.24x = 79,373,866.36
  5. Step 5: Solve for x
    x = 79,373,866.36/12,874.24
  6. Step 6: Final answer
    x = 6,165.32

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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.