Home / 7,898.96-11,827.68-6,663.28

Finding the Fourth Proportional to 7,898.96, 11,827.68 and 6,663.28

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Solution

The fourth proportional to 7,898.96, 11,827.68 and 6,663.28 is: 9,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.96 : 11,827.68 = 6,663.28 : x
  2. Step 2: Convert to fraction form
    7,898.96/11,827.68 = 6,663.28/x
  3. Step 3: Cross multiply
    7,898.96x = 11,827.68 × 6,663.28
  4. Step 4: Simplify right side
    7,898.96x = 78,811,143.59
  5. Step 5: Solve for x
    x = 78,811,143.59/7,898.96
  6. Step 6: Final answer
    x = 9,977.41

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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.