Home / 12,919.25-19,378.82-4,599.59

Finding the Fourth Proportional to 12,919.25, 19,378.82 and 4,599.59

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Solution

The fourth proportional to 12,919.25, 19,378.82 and 4,599.59 is: 6,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.25 : 19,378.82 = 4,599.59 : x
  2. Step 2: Convert to fraction form
    12,919.25/19,378.82 = 4,599.59/x
  3. Step 3: Cross multiply
    12,919.25x = 19,378.82 × 4,599.59
  4. Step 4: Simplify right side
    12,919.25x = 89,134,506.79
  5. Step 5: Solve for x
    x = 89,134,506.79/12,919.25
  6. Step 6: Final answer
    x = 6,899.36

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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.