Home / 8,986.94-13,480.48-3,143.58

Finding the Fourth Proportional to 8,986.94, 13,480.48 and 3,143.58

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Solution

The fourth proportional to 8,986.94, 13,480.48 and 3,143.58 is: 4,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.94 : 13,480.48 = 3,143.58 : x
  2. Step 2: Convert to fraction form
    8,986.94/13,480.48 = 3,143.58/x
  3. Step 3: Cross multiply
    8,986.94x = 13,480.48 × 3,143.58
  4. Step 4: Simplify right side
    8,986.94x = 42,376,967.32
  5. Step 5: Solve for x
    x = 42,376,967.32/8,986.94
  6. Step 6: Final answer
    x = 4,715.39

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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.