Home / 19,114.86-26,378.69-11,155.55

Finding the Fourth Proportional to 19,114.86, 26,378.69 and 11,155.55

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Solution

The fourth proportional to 19,114.86, 26,378.69 and 11,155.55 is: 15,394.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.86 : 26,378.69 = 11,155.55 : x
  2. Step 2: Convert to fraction form
    19,114.86/26,378.69 = 11,155.55/x
  3. Step 3: Cross multiply
    19,114.86x = 26,378.69 × 11,155.55
  4. Step 4: Simplify right side
    19,114.86x = 294,268,713.12
  5. Step 5: Solve for x
    x = 294,268,713.12/19,114.86
  6. Step 6: Final answer
    x = 15,394.76

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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.