Home / 13,974.84-19,284.88-7,687.22

Finding the Fourth Proportional to 13,974.84, 19,284.88 and 7,687.22

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Solution

The fourth proportional to 13,974.84, 19,284.88 and 7,687.22 is: 10,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.84 : 19,284.88 = 7,687.22 : x
  2. Step 2: Convert to fraction form
    13,974.84/19,284.88 = 7,687.22/x
  3. Step 3: Cross multiply
    13,974.84x = 19,284.88 × 7,687.22
  4. Step 4: Simplify right side
    13,974.84x = 148,247,115.23
  5. Step 5: Solve for x
    x = 148,247,115.23/13,974.84
  6. Step 6: Final answer
    x = 10,608.14

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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.