Home / 19,618.91-27,074.15-10,666.41

Finding the Fourth Proportional to 19,618.91, 27,074.15 and 10,666.41

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Solution

The fourth proportional to 19,618.91, 27,074.15 and 10,666.41 is: 14,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.91 : 27,074.15 = 10,666.41 : x
  2. Step 2: Convert to fraction form
    19,618.91/27,074.15 = 10,666.41/x
  3. Step 3: Cross multiply
    19,618.91x = 27,074.15 × 10,666.41
  4. Step 4: Simplify right side
    19,618.91x = 288,783,930.97
  5. Step 5: Solve for x
    x = 288,783,930.97/19,618.91
  6. Step 6: Final answer
    x = 14,719.68

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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.