Home / 12,214.88-16,857.75-8,814.70

Finding the Fourth Proportional to 12,214.88, 16,857.75 and 8,814.70

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Solution

The fourth proportional to 12,214.88, 16,857.75 and 8,814.70 is: 12,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.88 : 16,857.75 = 8,814.70 : x
  2. Step 2: Convert to fraction form
    12,214.88/16,857.75 = 8,814.70/x
  3. Step 3: Cross multiply
    12,214.88x = 16,857.75 × 8,814.70
  4. Step 4: Simplify right side
    12,214.88x = 148,595,941.27
  5. Step 5: Solve for x
    x = 148,595,941.27/12,214.88
  6. Step 6: Final answer
    x = 12,165.16

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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.