Home / 10,390.84-15,589.38-4,847.41

Finding the Fourth Proportional to 10,390.84, 15,589.38 and 4,847.41

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Solution

The fourth proportional to 10,390.84, 15,589.38 and 4,847.41 is: 7,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.84 : 15,589.38 = 4,847.41 : x
  2. Step 2: Convert to fraction form
    10,390.84/15,589.38 = 4,847.41/x
  3. Step 3: Cross multiply
    10,390.84x = 15,589.38 × 4,847.41
  4. Step 4: Simplify right side
    10,390.84x = 75,568,116.51
  5. Step 5: Solve for x
    x = 75,568,116.51/10,390.84
  6. Step 6: Final answer
    x = 7,272.57

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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.