Home / 11,418.23-15,756.84-6,382.47

Finding the Fourth Proportional to 11,418.23, 15,756.84 and 6,382.47

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Solution

The fourth proportional to 11,418.23, 15,756.84 and 6,382.47 is: 8,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.23 : 15,756.84 = 6,382.47 : x
  2. Step 2: Convert to fraction form
    11,418.23/15,756.84 = 6,382.47/x
  3. Step 3: Cross multiply
    11,418.23x = 15,756.84 × 6,382.47
  4. Step 4: Simplify right side
    11,418.23x = 100,567,558.59
  5. Step 5: Solve for x
    x = 100,567,558.59/11,418.23
  6. Step 6: Final answer
    x = 8,807.63

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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.