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Finding the Fourth Proportional to 12,605.74, 17,395.97 and 6,941.05

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Solution

The fourth proportional to 12,605.74, 17,395.97 and 6,941.05 is: 9,578.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.74 : 17,395.97 = 6,941.05 : x
  2. Step 2: Convert to fraction form
    12,605.74/17,395.97 = 6,941.05/x
  3. Step 3: Cross multiply
    12,605.74x = 17,395.97 × 6,941.05
  4. Step 4: Simplify right side
    12,605.74x = 120,746,219.37
  5. Step 5: Solve for x
    x = 120,746,219.37/12,605.74
  6. Step 6: Final answer
    x = 9,578.67

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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.