Home / 17,112.72-25,672.68-9,720.60

Finding the Fourth Proportional to 17,112.72, 25,672.68 and 9,720.60

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Solution

The fourth proportional to 17,112.72, 25,672.68 and 9,720.60 is: 14,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,112.72 : 25,672.68 = 9,720.60 : x
  2. Step 2: Convert to fraction form
    17,112.72/25,672.68 = 9,720.60/x
  3. Step 3: Cross multiply
    17,112.72x = 25,672.68 × 9,720.60
  4. Step 4: Simplify right side
    17,112.72x = 249,553,853.21
  5. Step 5: Solve for x
    x = 249,553,853.21/17,112.72
  6. Step 6: Final answer
    x = 14,582.94

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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.