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Finding the Fourth Proportional to 9,911.99, 14,868.05 and 3,908.67

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Solution

The fourth proportional to 9,911.99, 14,868.05 and 3,908.67 is: 5,863.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.99 : 14,868.05 = 3,908.67 : x
  2. Step 2: Convert to fraction form
    9,911.99/14,868.05 = 3,908.67/x
  3. Step 3: Cross multiply
    9,911.99x = 14,868.05 × 3,908.67
  4. Step 4: Simplify right side
    9,911.99x = 58,114,281.45
  5. Step 5: Solve for x
    x = 58,114,281.45/9,911.99
  6. Step 6: Final answer
    x = 5,863.03

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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.