Home / 13,579.84-18,741.54-8,855.92

Finding the Fourth Proportional to 13,579.84, 18,741.54 and 8,855.92

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Solution

The fourth proportional to 13,579.84, 18,741.54 and 8,855.92 is: 12,222.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.84 : 18,741.54 = 8,855.92 : x
  2. Step 2: Convert to fraction form
    13,579.84/18,741.54 = 8,855.92/x
  3. Step 3: Cross multiply
    13,579.84x = 18,741.54 × 8,855.92
  4. Step 4: Simplify right side
    13,579.84x = 165,973,578.92
  5. Step 5: Solve for x
    x = 165,973,578.92/13,579.84
  6. Step 6: Final answer
    x = 12,222.06

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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.