Home / 13,935.01-19,230.12-7,647.38

Finding the Fourth Proportional to 13,935.01, 19,230.12 and 7,647.38

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Solution

The fourth proportional to 13,935.01, 19,230.12 and 7,647.38 is: 10,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.01 : 19,230.12 = 7,647.38 : x
  2. Step 2: Convert to fraction form
    13,935.01/19,230.12 = 7,647.38/x
  3. Step 3: Cross multiply
    13,935.01x = 19,230.12 × 7,647.38
  4. Step 4: Simplify right side
    13,935.01x = 147,060,083.16
  5. Step 5: Solve for x
    x = 147,060,083.16/13,935.01
  6. Step 6: Final answer
    x = 10,553.28

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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.