Home / 11,406.76-15,740.43-6,370.58

Finding the Fourth Proportional to 11,406.76, 15,740.43 and 6,370.58

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Solution

The fourth proportional to 11,406.76, 15,740.43 and 6,370.58 is: 8,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.76 : 15,740.43 = 6,370.58 : x
  2. Step 2: Convert to fraction form
    11,406.76/15,740.43 = 6,370.58/x
  3. Step 3: Cross multiply
    11,406.76x = 15,740.43 × 6,370.58
  4. Step 4: Simplify right side
    11,406.76x = 100,275,684.01
  5. Step 5: Solve for x
    x = 100,275,684.01/11,406.76
  6. Step 6: Final answer
    x = 8,790.90

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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.