Home / 14,845.24-20,486.20-8,130.82

Finding the Fourth Proportional to 14,845.24, 20,486.20 and 8,130.82

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Solution

The fourth proportional to 14,845.24, 20,486.20 and 8,130.82 is: 11,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.24 : 20,486.20 = 8,130.82 : x
  2. Step 2: Convert to fraction form
    14,845.24/20,486.20 = 8,130.82/x
  3. Step 3: Cross multiply
    14,845.24x = 20,486.20 × 8,130.82
  4. Step 4: Simplify right side
    14,845.24x = 166,569,604.68
  5. Step 5: Solve for x
    x = 166,569,604.68/14,845.24
  6. Step 6: Final answer
    x = 11,220.40

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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.