Home / 10,378.80-15,563.16-4,830.84

Finding the Fourth Proportional to 10,378.80, 15,563.16 and 4,830.84

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Solution

The fourth proportional to 10,378.80, 15,563.16 and 4,830.84 is: 7,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.80 : 15,563.16 = 4,830.84 : x
  2. Step 2: Convert to fraction form
    10,378.80/15,563.16 = 4,830.84/x
  3. Step 3: Cross multiply
    10,378.80x = 15,563.16 × 4,830.84
  4. Step 4: Simplify right side
    10,378.80x = 75,183,135.85
  5. Step 5: Solve for x
    x = 75,183,135.85/10,378.80
  6. Step 6: Final answer
    x = 7,243.91

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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.