Home / 13,995.72-19,314-10,426.68

Finding the Fourth Proportional to 13,995.72, 19,314 and 10,426.68

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Solution

The fourth proportional to 13,995.72, 19,314 and 10,426.68 is: 14,388.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.72 : 19,314 = 10,426.68 : x
  2. Step 2: Convert to fraction form
    13,995.72/19,314 = 10,426.68/x
  3. Step 3: Cross multiply
    13,995.72x = 19,314 × 10,426.68
  4. Step 4: Simplify right side
    13,995.72x = 201,380,897.52
  5. Step 5: Solve for x
    x = 201,380,897.52/13,995.72
  6. Step 6: Final answer
    x = 14,388.75

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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.