Home / 13,907.08-19,189.92-7,938.36

Finding the Fourth Proportional to 13,907.08, 19,189.92 and 7,938.36

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Solution

The fourth proportional to 13,907.08, 19,189.92 and 7,938.36 is: 10,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.08 : 19,189.92 = 7,938.36 : x
  2. Step 2: Convert to fraction form
    13,907.08/19,189.92 = 7,938.36/x
  3. Step 3: Cross multiply
    13,907.08x = 19,189.92 × 7,938.36
  4. Step 4: Simplify right side
    13,907.08x = 152,336,493.33
  5. Step 5: Solve for x
    x = 152,336,493.33/13,907.08
  6. Step 6: Final answer
    x = 10,953.88

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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.