Home / 13,643.03-20,344.05-11,983.95

Finding the Fourth Proportional to 13,643.03, 20,344.05 and 11,983.95

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Solution

The fourth proportional to 13,643.03, 20,344.05 and 11,983.95 is: 17,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.03 : 20,344.05 = 11,983.95 : x
  2. Step 2: Convert to fraction form
    13,643.03/20,344.05 = 11,983.95/x
  3. Step 3: Cross multiply
    13,643.03x = 20,344.05 × 11,983.95
  4. Step 4: Simplify right side
    13,643.03x = 243,802,078.00
  5. Step 5: Solve for x
    x = 243,802,078.00/13,643.03
  6. Step 6: Final answer
    x = 17,870.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.