Home / 13,839-19,118.61-9,070.26

Finding the Fourth Proportional to 13,839, 19,118.61 and 9,070.26

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Solution

The fourth proportional to 13,839, 19,118.61 and 9,070.26 is: 12,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839 : 19,118.61 = 9,070.26 : x
  2. Step 2: Convert to fraction form
    13,839/19,118.61 = 9,070.26/x
  3. Step 3: Cross multiply
    13,839x = 19,118.61 × 9,070.26
  4. Step 4: Simplify right side
    13,839x = 173,410,763.54
  5. Step 5: Solve for x
    x = 173,410,763.54/13,839
  6. Step 6: Final answer
    x = 12,530.58

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1.5x scale

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.