Home / 13,078.84-19,582.30-9,134.04

Finding the Fourth Proportional to 13,078.84, 19,582.30 and 9,134.04

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Solution

The fourth proportional to 13,078.84, 19,582.30 and 9,134.04 is: 13,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.84 : 19,582.30 = 9,134.04 : x
  2. Step 2: Convert to fraction form
    13,078.84/19,582.30 = 9,134.04/x
  3. Step 3: Cross multiply
    13,078.84x = 19,582.30 × 9,134.04
  4. Step 4: Simplify right side
    13,078.84x = 178,865,511.49
  5. Step 5: Solve for x
    x = 178,865,511.49/13,078.84
  6. Step 6: Final answer
    x = 13,675.95

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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.