Home / 13,979.88-19,292.49-7,692.12

Finding the Fourth Proportional to 13,979.88, 19,292.49 and 7,692.12

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Solution

The fourth proportional to 13,979.88, 19,292.49 and 7,692.12 is: 10,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.88 : 19,292.49 = 7,692.12 : x
  2. Step 2: Convert to fraction form
    13,979.88/19,292.49 = 7,692.12/x
  3. Step 3: Cross multiply
    13,979.88x = 19,292.49 × 7,692.12
  4. Step 4: Simplify right side
    13,979.88x = 148,400,148.18
  5. Step 5: Solve for x
    x = 148,400,148.18/13,979.88
  6. Step 6: Final answer
    x = 10,615.27

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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.