Home / 19,338.85-26,679.63-11,782.42

Finding the Fourth Proportional to 19,338.85, 26,679.63 and 11,782.42

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Solution

The fourth proportional to 19,338.85, 26,679.63 and 11,782.42 is: 16,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.85 : 26,679.63 = 11,782.42 : x
  2. Step 2: Convert to fraction form
    19,338.85/26,679.63 = 11,782.42/x
  3. Step 3: Cross multiply
    19,338.85x = 26,679.63 × 11,782.42
  4. Step 4: Simplify right side
    19,338.85x = 314,350,583.59
  5. Step 5: Solve for x
    x = 314,350,583.59/19,338.85
  6. Step 6: Final answer
    x = 16,254.87

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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.