Home / 11,133.86-16,708.90-8,968.74

Finding the Fourth Proportional to 11,133.86, 16,708.90 and 8,968.74

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Solution

The fourth proportional to 11,133.86, 16,708.90 and 8,968.74 is: 13,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.86 : 16,708.90 = 8,968.74 : x
  2. Step 2: Convert to fraction form
    11,133.86/16,708.90 = 8,968.74/x
  3. Step 3: Cross multiply
    11,133.86x = 16,708.90 × 8,968.74
  4. Step 4: Simplify right side
    11,133.86x = 149,857,779.79
  5. Step 5: Solve for x
    x = 149,857,779.79/11,133.86
  6. Step 6: Final answer
    x = 13,459.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.