Home / 14,243.19-19,660.85-8,578.18

Finding the Fourth Proportional to 14,243.19, 19,660.85 and 8,578.18

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Solution

The fourth proportional to 14,243.19, 19,660.85 and 8,578.18 is: 11,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.19 : 19,660.85 = 8,578.18 : x
  2. Step 2: Convert to fraction form
    14,243.19/19,660.85 = 8,578.18/x
  3. Step 3: Cross multiply
    14,243.19x = 19,660.85 × 8,578.18
  4. Step 4: Simplify right side
    14,243.19x = 168,654,310.25
  5. Step 5: Solve for x
    x = 168,654,310.25/14,243.19
  6. Step 6: Final answer
    x = 11,841.05

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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.