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Finding the Fourth Proportional to 11,021.50, 16,510.02 and 5,090.02

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Solution

The fourth proportional to 11,021.50, 16,510.02 and 5,090.02 is: 7,624.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.50 : 16,510.02 = 5,090.02 : x
  2. Step 2: Convert to fraction form
    11,021.50/16,510.02 = 5,090.02/x
  3. Step 3: Cross multiply
    11,021.50x = 16,510.02 × 5,090.02
  4. Step 4: Simplify right side
    11,021.50x = 84,036,332.00
  5. Step 5: Solve for x
    x = 84,036,332.00/11,021.50
  6. Step 6: Final answer
    x = 7,624.76

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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.