Home / 9,990.75-14,986.85-3,834.75

Finding the Fourth Proportional to 9,990.75, 14,986.85 and 3,834.75

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Solution

The fourth proportional to 9,990.75, 14,986.85 and 3,834.75 is: 5,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.75 : 14,986.85 = 3,834.75 : x
  2. Step 2: Convert to fraction form
    9,990.75/14,986.85 = 3,834.75/x
  3. Step 3: Cross multiply
    9,990.75x = 14,986.85 × 3,834.75
  4. Step 4: Simplify right side
    9,990.75x = 57,470,803.86
  5. Step 5: Solve for x
    x = 57,470,803.86/9,990.75
  6. Step 6: Final answer
    x = 5,752.40

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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.