Home / 13,824.96-19,077.63-7,855.80

Finding the Fourth Proportional to 13,824.96, 19,077.63 and 7,855.80

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Solution

The fourth proportional to 13,824.96, 19,077.63 and 7,855.80 is: 10,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.96 : 19,077.63 = 7,855.80 : x
  2. Step 2: Convert to fraction form
    13,824.96/19,077.63 = 7,855.80/x
  3. Step 3: Cross multiply
    13,824.96x = 19,077.63 × 7,855.80
  4. Step 4: Simplify right side
    13,824.96x = 149,870,063.99
  5. Step 5: Solve for x
    x = 149,870,063.99/13,824.96
  6. Step 6: Final answer
    x = 10,840.54

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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.