Home / 14,979.72-20,671.96-8,265.31

Finding the Fourth Proportional to 14,979.72, 20,671.96 and 8,265.31

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Solution

The fourth proportional to 14,979.72, 20,671.96 and 8,265.31 is: 11,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.72 : 20,671.96 = 8,265.31 : x
  2. Step 2: Convert to fraction form
    14,979.72/20,671.96 = 8,265.31/x
  3. Step 3: Cross multiply
    14,979.72x = 20,671.96 × 8,265.31
  4. Step 4: Simplify right side
    14,979.72x = 170,860,188.07
  5. Step 5: Solve for x
    x = 170,860,188.07/14,979.72
  6. Step 6: Final answer
    x = 11,406.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.