Home / 13,055.75-19,619.76-12,739.24

Finding the Fourth Proportional to 13,055.75, 19,619.76 and 12,739.24

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Solution

The fourth proportional to 13,055.75, 19,619.76 and 12,739.24 is: 19,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.75 : 19,619.76 = 12,739.24 : x
  2. Step 2: Convert to fraction form
    13,055.75/19,619.76 = 12,739.24/x
  3. Step 3: Cross multiply
    13,055.75x = 19,619.76 × 12,739.24
  4. Step 4: Simplify right side
    13,055.75x = 249,940,733.28
  5. Step 5: Solve for x
    x = 249,940,733.28/13,055.75
  6. Step 6: Final answer
    x = 19,144.12

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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.