Home / 9,039.44-12,470.28-5,310.80

Finding the Fourth Proportional to 9,039.44, 12,470.28 and 5,310.80

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Solution

The fourth proportional to 9,039.44, 12,470.28 and 5,310.80 is: 7,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.44 : 12,470.28 = 5,310.80 : x
  2. Step 2: Convert to fraction form
    9,039.44/12,470.28 = 5,310.80/x
  3. Step 3: Cross multiply
    9,039.44x = 12,470.28 × 5,310.80
  4. Step 4: Simplify right side
    9,039.44x = 66,227,163.02
  5. Step 5: Solve for x
    x = 66,227,163.02/9,039.44
  6. Step 6: Final answer
    x = 7,326.47

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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.