Home / 11,406.39-15,740.43-6,370.57

Finding the Fourth Proportional to 11,406.39, 15,740.43 and 6,370.57

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Solution

The fourth proportional to 11,406.39, 15,740.43 and 6,370.57 is: 8,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.39 : 15,740.43 = 6,370.57 : x
  2. Step 2: Convert to fraction form
    11,406.39/15,740.43 = 6,370.57/x
  3. Step 3: Cross multiply
    11,406.39x = 15,740.43 × 6,370.57
  4. Step 4: Simplify right side
    11,406.39x = 100,275,418.39
  5. Step 5: Solve for x
    x = 100,275,418.39/11,406.39
  6. Step 6: Final answer
    x = 8,791.16

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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.