Home / 11,313.96-16,939.21-8,531.88

Finding the Fourth Proportional to 11,313.96, 16,939.21 and 8,531.88

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Solution

The fourth proportional to 11,313.96, 16,939.21 and 8,531.88 is: 12,773.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.96 : 16,939.21 = 8,531.88 : x
  2. Step 2: Convert to fraction form
    11,313.96/16,939.21 = 8,531.88/x
  3. Step 3: Cross multiply
    11,313.96x = 16,939.21 × 8,531.88
  4. Step 4: Simplify right side
    11,313.96x = 144,523,307.01
  5. Step 5: Solve for x
    x = 144,523,307.01/11,313.96
  6. Step 6: Final answer
    x = 12,773.89

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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.