Home / 11,663.21-16,085.32-9,855.08

Finding the Fourth Proportional to 11,663.21, 16,085.32 and 9,855.08

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Solution

The fourth proportional to 11,663.21, 16,085.32 and 9,855.08 is: 13,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.21 : 16,085.32 = 9,855.08 : x
  2. Step 2: Convert to fraction form
    11,663.21/16,085.32 = 9,855.08/x
  3. Step 3: Cross multiply
    11,663.21x = 16,085.32 × 9,855.08
  4. Step 4: Simplify right side
    11,663.21x = 158,522,131.00
  5. Step 5: Solve for x
    x = 158,522,131.00/11,663.21
  6. Step 6: Final answer
    x = 13,591.64

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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.