Home / 13,195.53-19,788.32-4,308.78

Finding the Fourth Proportional to 13,195.53, 19,788.32 and 4,308.78

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Solution

The fourth proportional to 13,195.53, 19,788.32 and 4,308.78 is: 6,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.53 : 19,788.32 = 4,308.78 : x
  2. Step 2: Convert to fraction form
    13,195.53/19,788.32 = 4,308.78/x
  3. Step 3: Cross multiply
    13,195.53x = 19,788.32 × 4,308.78
  4. Step 4: Simplify right side
    13,195.53x = 85,263,495.91
  5. Step 5: Solve for x
    x = 85,263,495.91/13,195.53
  6. Step 6: Final answer
    x = 6,461.54

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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.