Home / 9,886.20-14,829.84-3,311.79

Finding the Fourth Proportional to 9,886.20, 14,829.84 and 3,311.79

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Solution

The fourth proportional to 9,886.20, 14,829.84 and 3,311.79 is: 4,967.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.20 : 14,829.84 = 3,311.79 : x
  2. Step 2: Convert to fraction form
    9,886.20/14,829.84 = 3,311.79/x
  3. Step 3: Cross multiply
    9,886.20x = 14,829.84 × 3,311.79
  4. Step 4: Simplify right side
    9,886.20x = 49,113,315.81
  5. Step 5: Solve for x
    x = 49,113,315.81/9,886.20
  6. Step 6: Final answer
    x = 4,967.87

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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.