Home / 13,907.24-19,190.66-7,857.16

Finding the Fourth Proportional to 13,907.24, 19,190.66 and 7,857.16

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Solution

The fourth proportional to 13,907.24, 19,190.66 and 7,857.16 is: 10,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.24 : 19,190.66 = 7,857.16 : x
  2. Step 2: Convert to fraction form
    13,907.24/19,190.66 = 7,857.16/x
  3. Step 3: Cross multiply
    13,907.24x = 19,190.66 × 7,857.16
  4. Step 4: Simplify right side
    13,907.24x = 150,784,086.13
  5. Step 5: Solve for x
    x = 150,784,086.13/13,907.24
  6. Step 6: Final answer
    x = 10,842.13

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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.