Home / 12,567.38-18,843.89-5,165.75

Finding the Fourth Proportional to 12,567.38, 18,843.89 and 5,165.75

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Solution

The fourth proportional to 12,567.38, 18,843.89 and 5,165.75 is: 7,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,567.38 : 18,843.89 = 5,165.75 : x
  2. Step 2: Convert to fraction form
    12,567.38/18,843.89 = 5,165.75/x
  3. Step 3: Cross multiply
    12,567.38x = 18,843.89 × 5,165.75
  4. Step 4: Simplify right side
    12,567.38x = 97,342,824.77
  5. Step 5: Solve for x
    x = 97,342,824.77/12,567.38
  6. Step 6: Final answer
    x = 7,745.67

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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.