Home / 13,942.71-19,241.01-7,974.63

Finding the Fourth Proportional to 13,942.71, 19,241.01 and 7,974.63

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Solution

The fourth proportional to 13,942.71, 19,241.01 and 7,974.63 is: 11,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.71 : 19,241.01 = 7,974.63 : x
  2. Step 2: Convert to fraction form
    13,942.71/19,241.01 = 7,974.63/x
  3. Step 3: Cross multiply
    13,942.71x = 19,241.01 × 7,974.63
  4. Step 4: Simplify right side
    13,942.71x = 153,439,935.58
  5. Step 5: Solve for x
    x = 153,439,935.58/13,942.71
  6. Step 6: Final answer
    x = 11,005.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.