Home / 19,390.14-26,756.82-10,891.80

Finding the Fourth Proportional to 19,390.14, 26,756.82 and 10,891.80

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Solution

The fourth proportional to 19,390.14, 26,756.82 and 10,891.80 is: 15,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.14 : 26,756.82 = 10,891.80 : x
  2. Step 2: Convert to fraction form
    19,390.14/26,756.82 = 10,891.80/x
  3. Step 3: Cross multiply
    19,390.14x = 26,756.82 × 10,891.80
  4. Step 4: Simplify right side
    19,390.14x = 291,429,932.08
  5. Step 5: Solve for x
    x = 291,429,932.08/19,390.14
  6. Step 6: Final answer
    x = 15,029.80

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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.