Home / 13,828.25-19,083.44-7,779.56

Finding the Fourth Proportional to 13,828.25, 19,083.44 and 7,779.56

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Solution

The fourth proportional to 13,828.25, 19,083.44 and 7,779.56 is: 10,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.25 : 19,083.44 = 7,779.56 : x
  2. Step 2: Convert to fraction form
    13,828.25/19,083.44 = 7,779.56/x
  3. Step 3: Cross multiply
    13,828.25x = 19,083.44 × 7,779.56
  4. Step 4: Simplify right side
    13,828.25x = 148,460,690.52
  5. Step 5: Solve for x
    x = 148,460,690.52/13,828.25
  6. Step 6: Final answer
    x = 10,736.04

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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.