Home / 11,968.40-16,515.96-6,663.08

Finding the Fourth Proportional to 11,968.40, 16,515.96 and 6,663.08

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Solution

The fourth proportional to 11,968.40, 16,515.96 and 6,663.08 is: 9,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.40 : 16,515.96 = 6,663.08 : x
  2. Step 2: Convert to fraction form
    11,968.40/16,515.96 = 6,663.08/x
  3. Step 3: Cross multiply
    11,968.40x = 16,515.96 × 6,663.08
  4. Step 4: Simplify right side
    11,968.40x = 110,047,162.76
  5. Step 5: Solve for x
    x = 110,047,162.76/11,968.40
  6. Step 6: Final answer
    x = 9,194.81

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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.