Home / 13,935.30-19,229.85-7,647.63

Finding the Fourth Proportional to 13,935.30, 19,229.85 and 7,647.63

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Solution

The fourth proportional to 13,935.30, 19,229.85 and 7,647.63 is: 10,553.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.30 : 19,229.85 = 7,647.63 : x
  2. Step 2: Convert to fraction form
    13,935.30/19,229.85 = 7,647.63/x
  3. Step 3: Cross multiply
    13,935.30x = 19,229.85 × 7,647.63
  4. Step 4: Simplify right side
    13,935.30x = 147,062,777.76
  5. Step 5: Solve for x
    x = 147,062,777.76/13,935.30
  6. Step 6: Final answer
    x = 10,553.26

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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.