Home / 11,618.80-16,038.85-7,847.08

Finding the Fourth Proportional to 11,618.80, 16,038.85 and 7,847.08

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Solution

The fourth proportional to 11,618.80, 16,038.85 and 7,847.08 is: 10,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.80 : 16,038.85 = 7,847.08 : x
  2. Step 2: Convert to fraction form
    11,618.80/16,038.85 = 7,847.08/x
  3. Step 3: Cross multiply
    11,618.80x = 16,038.85 × 7,847.08
  4. Step 4: Simplify right side
    11,618.80x = 125,858,093.73
  5. Step 5: Solve for x
    x = 125,858,093.73/11,618.80
  6. Step 6: Final answer
    x = 10,832.28

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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.