Home / 13,822.09-19,074.53-7,855.74

Finding the Fourth Proportional to 13,822.09, 19,074.53 and 7,855.74

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Solution

The fourth proportional to 13,822.09, 19,074.53 and 7,855.74 is: 10,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.09 : 19,074.53 = 7,855.74 : x
  2. Step 2: Convert to fraction form
    13,822.09/19,074.53 = 7,855.74/x
  3. Step 3: Cross multiply
    13,822.09x = 19,074.53 × 7,855.74
  4. Step 4: Simplify right side
    13,822.09x = 149,844,548.30
  5. Step 5: Solve for x
    x = 149,844,548.30/13,822.09
  6. Step 6: Final answer
    x = 10,840.95

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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.