Home / 19,119.69-28,668.51-7,419.24

Finding the Fourth Proportional to 19,119.69, 28,668.51 and 7,419.24

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Solution

The fourth proportional to 19,119.69, 28,668.51 and 7,419.24 is: 11,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.69 : 28,668.51 = 7,419.24 : x
  2. Step 2: Convert to fraction form
    19,119.69/28,668.51 = 7,419.24/x
  3. Step 3: Cross multiply
    19,119.69x = 28,668.51 × 7,419.24
  4. Step 4: Simplify right side
    19,119.69x = 212,698,556.13
  5. Step 5: Solve for x
    x = 212,698,556.13/19,119.69
  6. Step 6: Final answer
    x = 11,124.58

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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.