Home / 13,282.23-19,918.70-3,919.76

Finding the Fourth Proportional to 13,282.23, 19,918.70 and 3,919.76

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Solution

The fourth proportional to 13,282.23, 19,918.70 and 3,919.76 is: 5,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.23 : 19,918.70 = 3,919.76 : x
  2. Step 2: Convert to fraction form
    13,282.23/19,918.70 = 3,919.76/x
  3. Step 3: Cross multiply
    13,282.23x = 19,918.70 × 3,919.76
  4. Step 4: Simplify right side
    13,282.23x = 78,076,404.32
  5. Step 5: Solve for x
    x = 78,076,404.32/13,282.23
  6. Step 6: Final answer
    x = 5,878.26

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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.