Home / 12,779.15-19,178.03-6,544.37

Finding the Fourth Proportional to 12,779.15, 19,178.03 and 6,544.37

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Solution

The fourth proportional to 12,779.15, 19,178.03 and 6,544.37 is: 9,821.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.15 : 19,178.03 = 6,544.37 : x
  2. Step 2: Convert to fraction form
    12,779.15/19,178.03 = 6,544.37/x
  3. Step 3: Cross multiply
    12,779.15x = 19,178.03 × 6,544.37
  4. Step 4: Simplify right side
    12,779.15x = 125,508,188.50
  5. Step 5: Solve for x
    x = 125,508,188.50/12,779.15
  6. Step 6: Final answer
    x = 9,821.33

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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.