Home / 19,147.08-26,419.06-11,187.77

Finding the Fourth Proportional to 19,147.08, 26,419.06 and 11,187.77

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Solution

The fourth proportional to 19,147.08, 26,419.06 and 11,187.77 is: 15,436.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.08 : 26,419.06 = 11,187.77 : x
  2. Step 2: Convert to fraction form
    19,147.08/26,419.06 = 11,187.77/x
  3. Step 3: Cross multiply
    19,147.08x = 26,419.06 × 11,187.77
  4. Step 4: Simplify right side
    19,147.08x = 295,570,347.86
  5. Step 5: Solve for x
    x = 295,570,347.86/19,147.08
  6. Step 6: Final answer
    x = 15,436.83

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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.