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Finding the Fourth Proportional to 12,556.56, 17,328.12 and 6,967.56

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Solution

The fourth proportional to 12,556.56, 17,328.12 and 6,967.56 is: 9,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.56 : 17,328.12 = 6,967.56 : x
  2. Step 2: Convert to fraction form
    12,556.56/17,328.12 = 6,967.56/x
  3. Step 3: Cross multiply
    12,556.56x = 17,328.12 × 6,967.56
  4. Step 4: Simplify right side
    12,556.56x = 120,734,715.79
  5. Step 5: Solve for x
    x = 120,734,715.79/12,556.56
  6. Step 6: Final answer
    x = 9,615.27

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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.