Home / 12,916.45-19,377.93-3,682.45

Finding the Fourth Proportional to 12,916.45, 19,377.93 and 3,682.45

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Solution

The fourth proportional to 12,916.45, 19,377.93 and 3,682.45 is: 5,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.45 : 19,377.93 = 3,682.45 : x
  2. Step 2: Convert to fraction form
    12,916.45/19,377.93 = 3,682.45/x
  3. Step 3: Cross multiply
    12,916.45x = 19,377.93 × 3,682.45
  4. Step 4: Simplify right side
    12,916.45x = 71,358,161.44
  5. Step 5: Solve for x
    x = 71,358,161.44/12,916.45
  6. Step 6: Final answer
    x = 5,524.60

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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.