Home / 12,775.57-19,161.31-4,012.54

Finding the Fourth Proportional to 12,775.57, 19,161.31 and 4,012.54

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Solution

The fourth proportional to 12,775.57, 19,161.31 and 4,012.54 is: 6,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.57 : 19,161.31 = 4,012.54 : x
  2. Step 2: Convert to fraction form
    12,775.57/19,161.31 = 4,012.54/x
  3. Step 3: Cross multiply
    12,775.57x = 19,161.31 × 4,012.54
  4. Step 4: Simplify right side
    12,775.57x = 76,885,472.42
  5. Step 5: Solve for x
    x = 76,885,472.42/12,775.57
  6. Step 6: Final answer
    x = 6,018.16

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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.