Home / 12,779.54-19,169.91-4,015.13

Finding the Fourth Proportional to 12,779.54, 19,169.91 and 4,015.13

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Solution

The fourth proportional to 12,779.54, 19,169.91 and 4,015.13 is: 6,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.54 : 19,169.91 = 4,015.13 : x
  2. Step 2: Convert to fraction form
    12,779.54/19,169.91 = 4,015.13/x
  3. Step 3: Cross multiply
    12,779.54x = 19,169.91 × 4,015.13
  4. Step 4: Simplify right side
    12,779.54x = 76,969,680.74
  5. Step 5: Solve for x
    x = 76,969,680.74/12,779.54
  6. Step 6: Final answer
    x = 6,022.88

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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.