Home / 13,779.24-19,015.74-8,114.52

Finding the Fourth Proportional to 13,779.24, 19,015.74 and 8,114.52

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Solution

The fourth proportional to 13,779.24, 19,015.74 and 8,114.52 is: 11,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.24 : 19,015.74 = 8,114.52 : x
  2. Step 2: Convert to fraction form
    13,779.24/19,015.74 = 8,114.52/x
  3. Step 3: Cross multiply
    13,779.24x = 19,015.74 × 8,114.52
  4. Step 4: Simplify right side
    13,779.24x = 154,303,602.54
  5. Step 5: Solve for x
    x = 154,303,602.54/13,779.24
  6. Step 6: Final answer
    x = 11,198.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.