Home / 11,117.81-16,652.23-8,003.90

Finding the Fourth Proportional to 11,117.81, 16,652.23 and 8,003.90

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Solution

The fourth proportional to 11,117.81, 16,652.23 and 8,003.90 is: 11,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.81 : 16,652.23 = 8,003.90 : x
  2. Step 2: Convert to fraction form
    11,117.81/16,652.23 = 8,003.90/x
  3. Step 3: Cross multiply
    11,117.81x = 16,652.23 × 8,003.90
  4. Step 4: Simplify right side
    11,117.81x = 133,282,783.70
  5. Step 5: Solve for x
    x = 133,282,783.70/11,117.81
  6. Step 6: Final answer
    x = 11,988.22

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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.