Home / 9,189.68-13,784.60-2,615.86

Finding the Fourth Proportional to 9,189.68, 13,784.60 and 2,615.86

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Solution

The fourth proportional to 9,189.68, 13,784.60 and 2,615.86 is: 3,923.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.68 : 13,784.60 = 2,615.86 : x
  2. Step 2: Convert to fraction form
    9,189.68/13,784.60 = 2,615.86/x
  3. Step 3: Cross multiply
    9,189.68x = 13,784.60 × 2,615.86
  4. Step 4: Simplify right side
    9,189.68x = 36,058,536.22
  5. Step 5: Solve for x
    x = 36,058,536.22/9,189.68
  6. Step 6: Final answer
    x = 3,923.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.