Home / 12,905.44-19,278.06-9,367.36

Finding the Fourth Proportional to 12,905.44, 19,278.06 and 9,367.36

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Solution

The fourth proportional to 12,905.44, 19,278.06 and 9,367.36 is: 13,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.44 : 19,278.06 = 9,367.36 : x
  2. Step 2: Convert to fraction form
    12,905.44/19,278.06 = 9,367.36/x
  3. Step 3: Cross multiply
    12,905.44x = 19,278.06 × 9,367.36
  4. Step 4: Simplify right side
    12,905.44x = 180,584,528.12
  5. Step 5: Solve for x
    x = 180,584,528.12/12,905.44
  6. Step 6: Final answer
    x = 13,992.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.