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Finding the Fourth Proportional to 15,155.54, 22,749.71 and 9,241.78

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Solution

The fourth proportional to 15,155.54, 22,749.71 and 9,241.78 is: 13,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.54 : 22,749.71 = 9,241.78 : x
  2. Step 2: Convert to fraction form
    15,155.54/22,749.71 = 9,241.78/x
  3. Step 3: Cross multiply
    15,155.54x = 22,749.71 × 9,241.78
  4. Step 4: Simplify right side
    15,155.54x = 210,247,806.44
  5. Step 5: Solve for x
    x = 210,247,806.44/15,155.54
  6. Step 6: Final answer
    x = 13,872.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.