Home / 11,777.02-16,255.11-8,986.30

Finding the Fourth Proportional to 11,777.02, 16,255.11 and 8,986.30

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Solution

The fourth proportional to 11,777.02, 16,255.11 and 8,986.30 is: 12,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.02 : 16,255.11 = 8,986.30 : x
  2. Step 2: Convert to fraction form
    11,777.02/16,255.11 = 8,986.30/x
  3. Step 3: Cross multiply
    11,777.02x = 16,255.11 × 8,986.30
  4. Step 4: Simplify right side
    11,777.02x = 146,073,294.99
  5. Step 5: Solve for x
    x = 146,073,294.99/11,777.02
  6. Step 6: Final answer
    x = 12,403.25

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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.