Home / 19,390.08-29,087.64-6,907.92

Finding the Fourth Proportional to 19,390.08, 29,087.64 and 6,907.92

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Solution

The fourth proportional to 19,390.08, 29,087.64 and 6,907.92 is: 10,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.08 : 29,087.64 = 6,907.92 : x
  2. Step 2: Convert to fraction form
    19,390.08/29,087.64 = 6,907.92/x
  3. Step 3: Cross multiply
    19,390.08x = 29,087.64 × 6,907.92
  4. Step 4: Simplify right side
    19,390.08x = 200,935,090.11
  5. Step 5: Solve for x
    x = 200,935,090.11/19,390.08
  6. Step 6: Final answer
    x = 10,362.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.