Home / 13,935.13-19,230.42-7,647.37

Finding the Fourth Proportional to 13,935.13, 19,230.42 and 7,647.37

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Solution

The fourth proportional to 13,935.13, 19,230.42 and 7,647.37 is: 10,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.13 : 19,230.42 = 7,647.37 : x
  2. Step 2: Convert to fraction form
    13,935.13/19,230.42 = 7,647.37/x
  3. Step 3: Cross multiply
    13,935.13x = 19,230.42 × 7,647.37
  4. Step 4: Simplify right side
    13,935.13x = 147,062,137.00
  5. Step 5: Solve for x
    x = 147,062,137.00/13,935.13
  6. Step 6: Final answer
    x = 10,553.34

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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.