Home / 19,144.08-28,663.92-9,890.64

Finding the Fourth Proportional to 19,144.08, 28,663.92 and 9,890.64

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Solution

The fourth proportional to 19,144.08, 28,663.92 and 9,890.64 is: 14,808.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.08 : 28,663.92 = 9,890.64 : x
  2. Step 2: Convert to fraction form
    19,144.08/28,663.92 = 9,890.64/x
  3. Step 3: Cross multiply
    19,144.08x = 28,663.92 × 9,890.64
  4. Step 4: Simplify right side
    19,144.08x = 283,504,513.71
  5. Step 5: Solve for x
    x = 283,504,513.71/19,144.08
  6. Step 6: Final answer
    x = 14,808.99

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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.