Home / 8,378.49-11,561.46-4,842.84

Finding the Fourth Proportional to 8,378.49, 11,561.46 and 4,842.84

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Solution

The fourth proportional to 8,378.49, 11,561.46 and 4,842.84 is: 6,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.49 : 11,561.46 = 4,842.84 : x
  2. Step 2: Convert to fraction form
    8,378.49/11,561.46 = 4,842.84/x
  3. Step 3: Cross multiply
    8,378.49x = 11,561.46 × 4,842.84
  4. Step 4: Simplify right side
    8,378.49x = 55,990,300.95
  5. Step 5: Solve for x
    x = 55,990,300.95/8,378.49
  6. Step 6: Final answer
    x = 6,682.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.