Home / 18,972.84-28,476.75-9,619.41

Finding the Fourth Proportional to 18,972.84, 28,476.75 and 9,619.41

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Solution

The fourth proportional to 18,972.84, 28,476.75 and 9,619.41 is: 14,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.84 : 28,476.75 = 9,619.41 : x
  2. Step 2: Convert to fraction form
    18,972.84/28,476.75 = 9,619.41/x
  3. Step 3: Cross multiply
    18,972.84x = 28,476.75 × 9,619.41
  4. Step 4: Simplify right side
    18,972.84x = 273,929,533.72
  5. Step 5: Solve for x
    x = 273,929,533.72/18,972.84
  6. Step 6: Final answer
    x = 14,437.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.