Home / 14,822.39-20,455.40-8,108.43

Finding the Fourth Proportional to 14,822.39, 20,455.40 and 8,108.43

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Solution

The fourth proportional to 14,822.39, 20,455.40 and 8,108.43 is: 11,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,822.39 : 20,455.40 = 8,108.43 : x
  2. Step 2: Convert to fraction form
    14,822.39/20,455.40 = 8,108.43/x
  3. Step 3: Cross multiply
    14,822.39x = 20,455.40 × 8,108.43
  4. Step 4: Simplify right side
    14,822.39x = 165,861,199.29
  5. Step 5: Solve for x
    x = 165,861,199.29/14,822.39
  6. Step 6: Final answer
    x = 11,189.91

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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.