Home / 11,968.61-16,516.96-6,663.78

Finding the Fourth Proportional to 11,968.61, 16,516.96 and 6,663.78

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Solution

The fourth proportional to 11,968.61, 16,516.96 and 6,663.78 is: 9,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.61 : 16,516.96 = 6,663.78 : x
  2. Step 2: Convert to fraction form
    11,968.61/16,516.96 = 6,663.78/x
  3. Step 3: Cross multiply
    11,968.61x = 16,516.96 × 6,663.78
  4. Step 4: Simplify right side
    11,968.61x = 110,065,387.71
  5. Step 5: Solve for x
    x = 110,065,387.71/11,968.61
  6. Step 6: Final answer
    x = 9,196.17

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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.