Home / 9,966.32-14,948.87-4,122.78

Finding the Fourth Proportional to 9,966.32, 14,948.87 and 4,122.78

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Solution

The fourth proportional to 9,966.32, 14,948.87 and 4,122.78 is: 6,183.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.32 : 14,948.87 = 4,122.78 : x
  2. Step 2: Convert to fraction form
    9,966.32/14,948.87 = 4,122.78/x
  3. Step 3: Cross multiply
    9,966.32x = 14,948.87 × 4,122.78
  4. Step 4: Simplify right side
    9,966.32x = 61,630,806.90
  5. Step 5: Solve for x
    x = 61,630,806.90/9,966.32
  6. Step 6: Final answer
    x = 6,183.91

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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.