Home / 11,342.43-17,001.90-8,214.72

Finding the Fourth Proportional to 11,342.43, 17,001.90 and 8,214.72

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Solution

The fourth proportional to 11,342.43, 17,001.90 and 8,214.72 is: 12,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.43 : 17,001.90 = 8,214.72 : x
  2. Step 2: Convert to fraction form
    11,342.43/17,001.90 = 8,214.72/x
  3. Step 3: Cross multiply
    11,342.43x = 17,001.90 × 8,214.72
  4. Step 4: Simplify right side
    11,342.43x = 139,665,784.21
  5. Step 5: Solve for x
    x = 139,665,784.21/11,342.43
  6. Step 6: Final answer
    x = 12,313.57

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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.