Home / 17,140.44-25,716.24-7,779.36

Finding the Fourth Proportional to 17,140.44, 25,716.24 and 7,779.36

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Solution

The fourth proportional to 17,140.44, 25,716.24 and 7,779.36 is: 11,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.44 : 25,716.24 = 7,779.36 : x
  2. Step 2: Convert to fraction form
    17,140.44/25,716.24 = 7,779.36/x
  3. Step 3: Cross multiply
    17,140.44x = 25,716.24 × 7,779.36
  4. Step 4: Simplify right side
    17,140.44x = 200,055,888.81
  5. Step 5: Solve for x
    x = 200,055,888.81/17,140.44
  6. Step 6: Final answer
    x = 11,671.57

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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.