Home / 13,279.68-19,918.44-4,959.36

Finding the Fourth Proportional to 13,279.68, 19,918.44 and 4,959.36

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Solution

The fourth proportional to 13,279.68, 19,918.44 and 4,959.36 is: 7,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.68 : 19,918.44 = 4,959.36 : x
  2. Step 2: Convert to fraction form
    13,279.68/19,918.44 = 4,959.36/x
  3. Step 3: Cross multiply
    13,279.68x = 19,918.44 × 4,959.36
  4. Step 4: Simplify right side
    13,279.68x = 98,782,714.60
  5. Step 5: Solve for x
    x = 98,782,714.60/13,279.68
  6. Step 6: Final answer
    x = 7,438.64

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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.