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Finding the Fourth Proportional to 11,650.08, 16,064.80 and 8,661.12

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Solution

The fourth proportional to 11,650.08, 16,064.80 and 8,661.12 is: 11,943.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,650.08 : 16,064.80 = 8,661.12 : x
  2. Step 2: Convert to fraction form
    11,650.08/16,064.80 = 8,661.12/x
  3. Step 3: Cross multiply
    11,650.08x = 16,064.80 × 8,661.12
  4. Step 4: Simplify right side
    11,650.08x = 139,139,160.58
  5. Step 5: Solve for x
    x = 139,139,160.58/11,650.08
  6. Step 6: Final answer
    x = 11,943.19

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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.