Home / 14,391.78-19,860.57-8,106.18

Finding the Fourth Proportional to 14,391.78, 19,860.57 and 8,106.18

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Solution

The fourth proportional to 14,391.78, 19,860.57 and 8,106.18 is: 11,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.78 : 19,860.57 = 8,106.18 : x
  2. Step 2: Convert to fraction form
    14,391.78/19,860.57 = 8,106.18/x
  3. Step 3: Cross multiply
    14,391.78x = 19,860.57 × 8,106.18
  4. Step 4: Simplify right side
    14,391.78x = 160,993,355.32
  5. Step 5: Solve for x
    x = 160,993,355.32/14,391.78
  6. Step 6: Final answer
    x = 11,186.48

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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.