Home / 15,382.84-21,243.90-13,254.04

Finding the Fourth Proportional to 15,382.84, 21,243.90 and 13,254.04

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Solution

The fourth proportional to 15,382.84, 21,243.90 and 13,254.04 is: 18,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.84 : 21,243.90 = 13,254.04 : x
  2. Step 2: Convert to fraction form
    15,382.84/21,243.90 = 13,254.04/x
  3. Step 3: Cross multiply
    15,382.84x = 21,243.90 × 13,254.04
  4. Step 4: Simplify right side
    15,382.84x = 281,567,500.36
  5. Step 5: Solve for x
    x = 281,567,500.36/15,382.84
  6. Step 6: Final answer
    x = 18,304.00

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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.