Home / 10,380.81-15,571.26-2,589.63

Finding the Fourth Proportional to 10,380.81, 15,571.26 and 2,589.63

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Solution

The fourth proportional to 10,380.81, 15,571.26 and 2,589.63 is: 3,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.81 : 15,571.26 = 2,589.63 : x
  2. Step 2: Convert to fraction form
    10,380.81/15,571.26 = 2,589.63/x
  3. Step 3: Cross multiply
    10,380.81x = 15,571.26 × 2,589.63
  4. Step 4: Simplify right side
    10,380.81x = 40,323,802.03
  5. Step 5: Solve for x
    x = 40,323,802.03/10,380.81
  6. Step 6: Final answer
    x = 3,884.46

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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.