Home / 12,609.62-18,915.30-4,286.24

Finding the Fourth Proportional to 12,609.62, 18,915.30 and 4,286.24

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Solution

The fourth proportional to 12,609.62, 18,915.30 and 4,286.24 is: 6,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.62 : 18,915.30 = 4,286.24 : x
  2. Step 2: Convert to fraction form
    12,609.62/18,915.30 = 4,286.24/x
  3. Step 3: Cross multiply
    12,609.62x = 18,915.30 × 4,286.24
  4. Step 4: Simplify right side
    12,609.62x = 81,075,515.47
  5. Step 5: Solve for x
    x = 81,075,515.47/12,609.62
  6. Step 6: Final answer
    x = 6,429.66

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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.