Home / 19,113.99-28,668.39-7,270.75

Finding the Fourth Proportional to 19,113.99, 28,668.39 and 7,270.75

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Solution

The fourth proportional to 19,113.99, 28,668.39 and 7,270.75 is: 10,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.99 : 28,668.39 = 7,270.75 : x
  2. Step 2: Convert to fraction form
    19,113.99/28,668.39 = 7,270.75/x
  3. Step 3: Cross multiply
    19,113.99x = 28,668.39 × 7,270.75
  4. Step 4: Simplify right side
    19,113.99x = 208,440,696.59
  5. Step 5: Solve for x
    x = 208,440,696.59/19,113.99
  6. Step 6: Final answer
    x = 10,905.14

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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.