Home / 9,119.76-13,674.24-5,422.56

Finding the Fourth Proportional to 9,119.76, 13,674.24 and 5,422.56

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Solution

The fourth proportional to 9,119.76, 13,674.24 and 5,422.56 is: 8,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.76 : 13,674.24 = 5,422.56 : x
  2. Step 2: Convert to fraction form
    9,119.76/13,674.24 = 5,422.56/x
  3. Step 3: Cross multiply
    9,119.76x = 13,674.24 × 5,422.56
  4. Step 4: Simplify right side
    9,119.76x = 74,149,386.85
  5. Step 5: Solve for x
    x = 74,149,386.85/9,119.76
  6. Step 6: Final answer
    x = 8,130.63

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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.