Home / 18,928.08-26,114.40-11,851.92

Finding the Fourth Proportional to 18,928.08, 26,114.40 and 11,851.92

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Solution

The fourth proportional to 18,928.08, 26,114.40 and 11,851.92 is: 16,351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.08 : 26,114.40 = 11,851.92 : x
  2. Step 2: Convert to fraction form
    18,928.08/26,114.40 = 11,851.92/x
  3. Step 3: Cross multiply
    18,928.08x = 26,114.40 × 11,851.92
  4. Step 4: Simplify right side
    18,928.08x = 309,505,779.65
  5. Step 5: Solve for x
    x = 309,505,779.65/18,928.08
  6. Step 6: Final answer
    x = 16,351.67

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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.