Home / 11,281.52-16,897.64-4,687.72

Finding the Fourth Proportional to 11,281.52, 16,897.64 and 4,687.72

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Solution

The fourth proportional to 11,281.52, 16,897.64 and 4,687.72 is: 7,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.52 : 16,897.64 = 4,687.72 : x
  2. Step 2: Convert to fraction form
    11,281.52/16,897.64 = 4,687.72/x
  3. Step 3: Cross multiply
    11,281.52x = 16,897.64 × 4,687.72
  4. Step 4: Simplify right side
    11,281.52x = 79,211,404.98
  5. Step 5: Solve for x
    x = 79,211,404.98/11,281.52
  6. Step 6: Final answer
    x = 7,021.34

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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.