Home / 11,687.06-17,520.17-4,289.81

Finding the Fourth Proportional to 11,687.06, 17,520.17 and 4,289.81

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Solution

The fourth proportional to 11,687.06, 17,520.17 and 4,289.81 is: 6,430.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.06 : 17,520.17 = 4,289.81 : x
  2. Step 2: Convert to fraction form
    11,687.06/17,520.17 = 4,289.81/x
  3. Step 3: Cross multiply
    11,687.06x = 17,520.17 × 4,289.81
  4. Step 4: Simplify right side
    11,687.06x = 75,158,091.42
  5. Step 5: Solve for x
    x = 75,158,091.42/11,687.06
  6. Step 6: Final answer
    x = 6,430.88

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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.