Home / 13,821.44-19,081.49-9,113.93

Finding the Fourth Proportional to 13,821.44, 19,081.49 and 9,113.93

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Solution

The fourth proportional to 13,821.44, 19,081.49 and 9,113.93 is: 12,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.44 : 19,081.49 = 9,113.93 : x
  2. Step 2: Convert to fraction form
    13,821.44/19,081.49 = 9,113.93/x
  3. Step 3: Cross multiply
    13,821.44x = 19,081.49 × 9,113.93
  4. Step 4: Simplify right side
    13,821.44x = 173,907,223.18
  5. Step 5: Solve for x
    x = 173,907,223.18/13,821.44
  6. Step 6: Final answer
    x = 12,582.43

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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.