Home / 11,965.02-16,525.55-7,979.20

Finding the Fourth Proportional to 11,965.02, 16,525.55 and 7,979.20

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Solution

The fourth proportional to 11,965.02, 16,525.55 and 7,979.20 is: 11,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.02 : 16,525.55 = 7,979.20 : x
  2. Step 2: Convert to fraction form
    11,965.02/16,525.55 = 7,979.20/x
  3. Step 3: Cross multiply
    11,965.02x = 16,525.55 × 7,979.20
  4. Step 4: Simplify right side
    11,965.02x = 131,860,668.56
  5. Step 5: Solve for x
    x = 131,860,668.56/11,965.02
  6. Step 6: Final answer
    x = 11,020.51

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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.