Home / 11,311.20-15,609.43-6,276.18

Finding the Fourth Proportional to 11,311.20, 15,609.43 and 6,276.18

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Solution

The fourth proportional to 11,311.20, 15,609.43 and 6,276.18 is: 8,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.20 : 15,609.43 = 6,276.18 : x
  2. Step 2: Convert to fraction form
    11,311.20/15,609.43 = 6,276.18/x
  3. Step 3: Cross multiply
    11,311.20x = 15,609.43 × 6,276.18
  4. Step 4: Simplify right side
    11,311.20x = 97,967,561.00
  5. Step 5: Solve for x
    x = 97,967,561.00/11,311.20
  6. Step 6: Final answer
    x = 8,661.12

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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.