Home / 12,855.67-19,286.58-4,537.55

Finding the Fourth Proportional to 12,855.67, 19,286.58 and 4,537.55

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Solution

The fourth proportional to 12,855.67, 19,286.58 and 4,537.55 is: 6,807.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.67 : 19,286.58 = 4,537.55 : x
  2. Step 2: Convert to fraction form
    12,855.67/19,286.58 = 4,537.55/x
  3. Step 3: Cross multiply
    12,855.67x = 19,286.58 × 4,537.55
  4. Step 4: Simplify right side
    12,855.67x = 87,513,869.30
  5. Step 5: Solve for x
    x = 87,513,869.30/12,855.67
  6. Step 6: Final answer
    x = 6,807.42

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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.