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Finding the Fourth Proportional to 7,069.36, 9,756 and 3,926.14

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Solution

The fourth proportional to 7,069.36, 9,756 and 3,926.14 is: 5,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.36 : 9,756 = 3,926.14 : x
  2. Step 2: Convert to fraction form
    7,069.36/9,756 = 3,926.14/x
  3. Step 3: Cross multiply
    7,069.36x = 9,756 × 3,926.14
  4. Step 4: Simplify right side
    7,069.36x = 38,303,421.84
  5. Step 5: Solve for x
    x = 38,303,421.84/7,069.36
  6. Step 6: Final answer
    x = 5,418.23

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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.