Home / 11,728.02-16,186.77-7,012.74

Finding the Fourth Proportional to 11,728.02, 16,186.77 and 7,012.74

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Solution

The fourth proportional to 11,728.02, 16,186.77 and 7,012.74 is: 9,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.02 : 16,186.77 = 7,012.74 : x
  2. Step 2: Convert to fraction form
    11,728.02/16,186.77 = 7,012.74/x
  3. Step 3: Cross multiply
    11,728.02x = 16,186.77 × 7,012.74
  4. Step 4: Simplify right side
    11,728.02x = 113,513,609.45
  5. Step 5: Solve for x
    x = 113,513,609.45/11,728.02
  6. Step 6: Final answer
    x = 9,678.84

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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.