Home / 19,140.46-26,421.05-11,185.27

Finding the Fourth Proportional to 19,140.46, 26,421.05 and 11,185.27

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Solution

The fourth proportional to 19,140.46, 26,421.05 and 11,185.27 is: 15,439.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.46 : 26,421.05 = 11,185.27 : x
  2. Step 2: Convert to fraction form
    19,140.46/26,421.05 = 11,185.27/x
  3. Step 3: Cross multiply
    19,140.46x = 26,421.05 × 11,185.27
  4. Step 4: Simplify right side
    19,140.46x = 295,526,577.93
  5. Step 5: Solve for x
    x = 295,526,577.93/19,140.46
  6. Step 6: Final answer
    x = 15,439.89

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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.