Home / 11,659.02-16,085.43-8,120.94

Finding the Fourth Proportional to 11,659.02, 16,085.43 and 8,120.94

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Solution

The fourth proportional to 11,659.02, 16,085.43 and 8,120.94 is: 11,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.02 : 16,085.43 = 8,120.94 : x
  2. Step 2: Convert to fraction form
    11,659.02/16,085.43 = 8,120.94/x
  3. Step 3: Cross multiply
    11,659.02x = 16,085.43 × 8,120.94
  4. Step 4: Simplify right side
    11,659.02x = 130,628,811.90
  5. Step 5: Solve for x
    x = 130,628,811.90/11,659.02
  6. Step 6: Final answer
    x = 11,204.10

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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.