Home / 12,745.66-19,117.99-4,427.57

Finding the Fourth Proportional to 12,745.66, 19,117.99 and 4,427.57

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Solution

The fourth proportional to 12,745.66, 19,117.99 and 4,427.57 is: 6,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.66 : 19,117.99 = 4,427.57 : x
  2. Step 2: Convert to fraction form
    12,745.66/19,117.99 = 4,427.57/x
  3. Step 3: Cross multiply
    12,745.66x = 19,117.99 × 4,427.57
  4. Step 4: Simplify right side
    12,745.66x = 84,646,238.98
  5. Step 5: Solve for x
    x = 84,646,238.98/12,745.66
  6. Step 6: Final answer
    x = 6,641.18

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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.