Home / 13,781.02-19,017.82-7,493.38

Finding the Fourth Proportional to 13,781.02, 19,017.82 and 7,493.38

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Solution

The fourth proportional to 13,781.02, 19,017.82 and 7,493.38 is: 10,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.02 : 19,017.82 = 7,493.38 : x
  2. Step 2: Convert to fraction form
    13,781.02/19,017.82 = 7,493.38/x
  3. Step 3: Cross multiply
    13,781.02x = 19,017.82 × 7,493.38
  4. Step 4: Simplify right side
    13,781.02x = 142,507,752.03
  5. Step 5: Solve for x
    x = 142,507,752.03/13,781.02
  6. Step 6: Final answer
    x = 10,340.87

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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.