Home / 11,720.41-16,150.21-8,356.07

Finding the Fourth Proportional to 11,720.41, 16,150.21 and 8,356.07

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Solution

The fourth proportional to 11,720.41, 16,150.21 and 8,356.07 is: 11,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.41 : 16,150.21 = 8,356.07 : x
  2. Step 2: Convert to fraction form
    11,720.41/16,150.21 = 8,356.07/x
  3. Step 3: Cross multiply
    11,720.41x = 16,150.21 × 8,356.07
  4. Step 4: Simplify right side
    11,720.41x = 134,952,304.76
  5. Step 5: Solve for x
    x = 134,952,304.76/11,720.41
  6. Step 6: Final answer
    x = 11,514.30

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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.