Home / 8,723.40-13,086.45-2,878.26

Finding the Fourth Proportional to 8,723.40, 13,086.45 and 2,878.26

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Solution

The fourth proportional to 8,723.40, 13,086.45 and 2,878.26 is: 4,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.40 : 13,086.45 = 2,878.26 : x
  2. Step 2: Convert to fraction form
    8,723.40/13,086.45 = 2,878.26/x
  3. Step 3: Cross multiply
    8,723.40x = 13,086.45 × 2,878.26
  4. Step 4: Simplify right side
    8,723.40x = 37,666,205.58
  5. Step 5: Solve for x
    x = 37,666,205.58/8,723.40
  6. Step 6: Final answer
    x = 4,317.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.