Home / 12,954.58-19,431.39-4,189.25

Finding the Fourth Proportional to 12,954.58, 19,431.39 and 4,189.25

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Solution

The fourth proportional to 12,954.58, 19,431.39 and 4,189.25 is: 6,283.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.58 : 19,431.39 = 4,189.25 : x
  2. Step 2: Convert to fraction form
    12,954.58/19,431.39 = 4,189.25/x
  3. Step 3: Cross multiply
    12,954.58x = 19,431.39 × 4,189.25
  4. Step 4: Simplify right side
    12,954.58x = 81,402,950.56
  5. Step 5: Solve for x
    x = 81,402,950.56/12,954.58
  6. Step 6: Final answer
    x = 6,283.72

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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.