Home / 19,897.96-27,458.18-11,938.60

Finding the Fourth Proportional to 19,897.96, 27,458.18 and 11,938.60

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Solution

The fourth proportional to 19,897.96, 27,458.18 and 11,938.60 is: 16,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.96 : 27,458.18 = 11,938.60 : x
  2. Step 2: Convert to fraction form
    19,897.96/27,458.18 = 11,938.60/x
  3. Step 3: Cross multiply
    19,897.96x = 27,458.18 × 11,938.60
  4. Step 4: Simplify right side
    19,897.96x = 327,812,227.75
  5. Step 5: Solve for x
    x = 327,812,227.75/19,897.96
  6. Step 6: Final answer
    x = 16,474.67

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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.