Home / 12,556.16-17,329.94-8,307.44

Finding the Fourth Proportional to 12,556.16, 17,329.94 and 8,307.44

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Solution

The fourth proportional to 12,556.16, 17,329.94 and 8,307.44 is: 11,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.16 : 17,329.94 = 8,307.44 : x
  2. Step 2: Convert to fraction form
    12,556.16/17,329.94 = 8,307.44/x
  3. Step 3: Cross multiply
    12,556.16x = 17,329.94 × 8,307.44
  4. Step 4: Simplify right side
    12,556.16x = 143,967,436.75
  5. Step 5: Solve for x
    x = 143,967,436.75/12,556.16
  6. Step 6: Final answer
    x = 11,465.88

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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.