Home / 19,465.39-26,862.78-11,911.59

Finding the Fourth Proportional to 19,465.39, 26,862.78 and 11,911.59

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Solution

The fourth proportional to 19,465.39, 26,862.78 and 11,911.59 is: 16,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,465.39 : 26,862.78 = 11,911.59 : x
  2. Step 2: Convert to fraction form
    19,465.39/26,862.78 = 11,911.59/x
  3. Step 3: Cross multiply
    19,465.39x = 26,862.78 × 11,911.59
  4. Step 4: Simplify right side
    19,465.39x = 319,978,421.62
  5. Step 5: Solve for x
    x = 319,978,421.62/19,465.39
  6. Step 6: Final answer
    x = 16,438.33

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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.