Home / 14,822.81-20,454.89-8,108.45

Finding the Fourth Proportional to 14,822.81, 20,454.89 and 8,108.45

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Solution

The fourth proportional to 14,822.81, 20,454.89 and 8,108.45 is: 11,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,822.81 : 20,454.89 = 8,108.45 : x
  2. Step 2: Convert to fraction form
    14,822.81/20,454.89 = 8,108.45/x
  3. Step 3: Cross multiply
    14,822.81x = 20,454.89 × 8,108.45
  4. Step 4: Simplify right side
    14,822.81x = 165,857,310.00
  5. Step 5: Solve for x
    x = 165,857,310.00/14,822.81
  6. Step 6: Final answer
    x = 11,189.33

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1.5x scale

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.