Home / 12,063.85-18,081.79-7,137.64

Finding the Fourth Proportional to 12,063.85, 18,081.79 and 7,137.64

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Solution

The fourth proportional to 12,063.85, 18,081.79 and 7,137.64 is: 10,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,063.85 : 18,081.79 = 7,137.64 : x
  2. Step 2: Convert to fraction form
    12,063.85/18,081.79 = 7,137.64/x
  3. Step 3: Cross multiply
    12,063.85x = 18,081.79 × 7,137.64
  4. Step 4: Simplify right side
    12,063.85x = 129,061,307.58
  5. Step 5: Solve for x
    x = 129,061,307.58/12,063.85
  6. Step 6: Final answer
    x = 10,698.19

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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.