Home / 13,871.16-19,142.20-7,583.53

Finding the Fourth Proportional to 13,871.16, 19,142.20 and 7,583.53

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Solution

The fourth proportional to 13,871.16, 19,142.20 and 7,583.53 is: 10,465.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.16 : 19,142.20 = 7,583.53 : x
  2. Step 2: Convert to fraction form
    13,871.16/19,142.20 = 7,583.53/x
  3. Step 3: Cross multiply
    13,871.16x = 19,142.20 × 7,583.53
  4. Step 4: Simplify right side
    13,871.16x = 145,165,447.97
  5. Step 5: Solve for x
    x = 145,165,447.97/13,871.16
  6. Step 6: Final answer
    x = 10,465.27

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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.