Home / 11,716.13-16,165.59-6,999.50

Finding the Fourth Proportional to 11,716.13, 16,165.59 and 6,999.50

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Solution

The fourth proportional to 11,716.13, 16,165.59 and 6,999.50 is: 9,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.13 : 16,165.59 = 6,999.50 : x
  2. Step 2: Convert to fraction form
    11,716.13/16,165.59 = 6,999.50/x
  3. Step 3: Cross multiply
    11,716.13x = 16,165.59 × 6,999.50
  4. Step 4: Simplify right side
    11,716.13x = 113,151,047.21
  5. Step 5: Solve for x
    x = 113,151,047.21/11,716.13
  6. Step 6: Final answer
    x = 9,657.72

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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.