Home / 9,966.93-14,949.18-4,122.78

Finding the Fourth Proportional to 9,966.93, 14,949.18 and 4,122.78

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Solution

The fourth proportional to 9,966.93, 14,949.18 and 4,122.78 is: 6,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.93 : 14,949.18 = 4,122.78 : x
  2. Step 2: Convert to fraction form
    9,966.93/14,949.18 = 4,122.78/x
  3. Step 3: Cross multiply
    9,966.93x = 14,949.18 × 4,122.78
  4. Step 4: Simplify right side
    9,966.93x = 61,632,180.32
  5. Step 5: Solve for x
    x = 61,632,180.32/9,966.93
  6. Step 6: Final answer
    x = 6,183.67

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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.