Home / 12,908.12-19,362.24-3,548.28

Finding the Fourth Proportional to 12,908.12, 19,362.24 and 3,548.28

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Solution

The fourth proportional to 12,908.12, 19,362.24 and 3,548.28 is: 5,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.12 : 19,362.24 = 3,548.28 : x
  2. Step 2: Convert to fraction form
    12,908.12/19,362.24 = 3,548.28/x
  3. Step 3: Cross multiply
    12,908.12x = 19,362.24 × 3,548.28
  4. Step 4: Simplify right side
    12,908.12x = 68,702,648.95
  5. Step 5: Solve for x
    x = 68,702,648.95/12,908.12
  6. Step 6: Final answer
    x = 5,322.44

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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.