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Finding the Fourth Proportional to 13,301.84, 18,223.43 and 12,803.28

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Solution

The fourth proportional to 13,301.84, 18,223.43 and 12,803.28 is: 17,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.84 : 18,223.43 = 12,803.28 : x
  2. Step 2: Convert to fraction form
    13,301.84/18,223.43 = 12,803.28/x
  3. Step 3: Cross multiply
    13,301.84x = 18,223.43 × 12,803.28
  4. Step 4: Simplify right side
    13,301.84x = 233,319,612.83
  5. Step 5: Solve for x
    x = 233,319,612.83/13,301.84
  6. Step 6: Final answer
    x = 17,540.41

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.