Home / 9,191.21-13,784.45-2,615.90

Finding the Fourth Proportional to 9,191.21, 13,784.45 and 2,615.90

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Solution

The fourth proportional to 9,191.21, 13,784.45 and 2,615.90 is: 3,923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.21 : 13,784.45 = 2,615.90 : x
  2. Step 2: Convert to fraction form
    9,191.21/13,784.45 = 2,615.90/x
  3. Step 3: Cross multiply
    9,191.21x = 13,784.45 × 2,615.90
  4. Step 4: Simplify right side
    9,191.21x = 36,058,660.75
  5. Step 5: Solve for x
    x = 36,058,660.75/9,191.21
  6. Step 6: Final answer
    x = 3,923.17

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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.