Home / 9,189.45-13,784.36-2,615.81

Finding the Fourth Proportional to 9,189.45, 13,784.36 and 2,615.81

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Solution

The fourth proportional to 9,189.45, 13,784.36 and 2,615.81 is: 3,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.45 : 13,784.36 = 2,615.81 : x
  2. Step 2: Convert to fraction form
    9,189.45/13,784.36 = 2,615.81/x
  3. Step 3: Cross multiply
    9,189.45x = 13,784.36 × 2,615.81
  4. Step 4: Simplify right side
    9,189.45x = 36,057,184.73
  5. Step 5: Solve for x
    x = 36,057,184.73/9,189.45
  6. Step 6: Final answer
    x = 3,923.76

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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.