Home / 8,051.78-11,109.35-4,647.96

Finding the Fourth Proportional to 8,051.78, 11,109.35 and 4,647.96

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Solution

The fourth proportional to 8,051.78, 11,109.35 and 4,647.96 is: 6,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.78 : 11,109.35 = 4,647.96 : x
  2. Step 2: Convert to fraction form
    8,051.78/11,109.35 = 4,647.96/x
  3. Step 3: Cross multiply
    8,051.78x = 11,109.35 × 4,647.96
  4. Step 4: Simplify right side
    8,051.78x = 51,635,814.43
  5. Step 5: Solve for x
    x = 51,635,814.43/8,051.78
  6. Step 6: Final answer
    x = 6,412.97

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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.