Home / 11,418.69-15,756.53-6,450.69

Finding the Fourth Proportional to 11,418.69, 15,756.53 and 6,450.69

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Solution

The fourth proportional to 11,418.69, 15,756.53 and 6,450.69 is: 8,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.69 : 15,756.53 = 6,450.69 : x
  2. Step 2: Convert to fraction form
    11,418.69/15,756.53 = 6,450.69/x
  3. Step 3: Cross multiply
    11,418.69x = 15,756.53 × 6,450.69
  4. Step 4: Simplify right side
    11,418.69x = 101,640,458.25
  5. Step 5: Solve for x
    x = 101,640,458.25/11,418.69
  6. Step 6: Final answer
    x = 8,901.24

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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.