Home / 12,941.00-17,857.97-7,913.63

Finding the Fourth Proportional to 12,941.00, 17,857.97 and 7,913.63

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Solution

The fourth proportional to 12,941.00, 17,857.97 and 7,913.63 is: 10,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.00 : 17,857.97 = 7,913.63 : x
  2. Step 2: Convert to fraction form
    12,941.00/17,857.97 = 7,913.63/x
  3. Step 3: Cross multiply
    12,941.00x = 17,857.97 × 7,913.63
  4. Step 4: Simplify right side
    12,941.00x = 141,321,401.88
  5. Step 5: Solve for x
    x = 141,321,401.88/12,941.00
  6. Step 6: Final answer
    x = 10,920.44

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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.