Home / 12,779.35-19,163.54-4,456.89

Finding the Fourth Proportional to 12,779.35, 19,163.54 and 4,456.89

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Solution

The fourth proportional to 12,779.35, 19,163.54 and 4,456.89 is: 6,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.35 : 19,163.54 = 4,456.89 : x
  2. Step 2: Convert to fraction form
    12,779.35/19,163.54 = 4,456.89/x
  3. Step 3: Cross multiply
    12,779.35x = 19,163.54 × 4,456.89
  4. Step 4: Simplify right side
    12,779.35x = 85,409,800.93
  5. Step 5: Solve for x
    x = 85,409,800.93/12,779.35
  6. Step 6: Final answer
    x = 6,683.42

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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.