Home / 12,447.36-18,669.96-3,681.36

Finding the Fourth Proportional to 12,447.36, 18,669.96 and 3,681.36

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Solution

The fourth proportional to 12,447.36, 18,669.96 and 3,681.36 is: 5,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.36 : 18,669.96 = 3,681.36 : x
  2. Step 2: Convert to fraction form
    12,447.36/18,669.96 = 3,681.36/x
  3. Step 3: Cross multiply
    12,447.36x = 18,669.96 × 3,681.36
  4. Step 4: Simplify right side
    12,447.36x = 68,730,843.95
  5. Step 5: Solve for x
    x = 68,730,843.95/12,447.36
  6. Step 6: Final answer
    x = 5,521.72

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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.