Home / 13,013.63-19,520.82-4,129.00

Finding the Fourth Proportional to 13,013.63, 19,520.82 and 4,129.00

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Solution

The fourth proportional to 13,013.63, 19,520.82 and 4,129.00 is: 6,193.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.63 : 19,520.82 = 4,129.00 : x
  2. Step 2: Convert to fraction form
    13,013.63/19,520.82 = 4,129.00/x
  3. Step 3: Cross multiply
    13,013.63x = 19,520.82 × 4,129.00
  4. Step 4: Simplify right side
    13,013.63x = 80,601,347.53
  5. Step 5: Solve for x
    x = 80,601,347.53/13,013.63
  6. Step 6: Final answer
    x = 6,193.61

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1.5x scale

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.