Home / 13,902.84-20,855.63-4,039.47

Finding the Fourth Proportional to 13,902.84, 20,855.63 and 4,039.47

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Solution

The fourth proportional to 13,902.84, 20,855.63 and 4,039.47 is: 6,059.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.84 : 20,855.63 = 4,039.47 : x
  2. Step 2: Convert to fraction form
    13,902.84/20,855.63 = 4,039.47/x
  3. Step 3: Cross multiply
    13,902.84x = 20,855.63 × 4,039.47
  4. Step 4: Simplify right side
    13,902.84x = 84,245,679.09
  5. Step 5: Solve for x
    x = 84,245,679.09/13,902.84
  6. Step 6: Final answer
    x = 6,059.60

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1.5x scale

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.