Home / 19,668.62-27,139.65-11,283.50

Finding the Fourth Proportional to 19,668.62, 27,139.65 and 11,283.50

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Solution

The fourth proportional to 19,668.62, 27,139.65 and 11,283.50 is: 15,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.62 : 27,139.65 = 11,283.50 : x
  2. Step 2: Convert to fraction form
    19,668.62/27,139.65 = 11,283.50/x
  3. Step 3: Cross multiply
    19,668.62x = 27,139.65 × 11,283.50
  4. Step 4: Simplify right side
    19,668.62x = 306,230,240.78
  5. Step 5: Solve for x
    x = 306,230,240.78/19,668.62
  6. Step 6: Final answer
    x = 15,569.48

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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.