Home / 13,342.20-20,013.30-4,108.20

Finding the Fourth Proportional to 13,342.20, 20,013.30 and 4,108.20

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Solution

The fourth proportional to 13,342.20, 20,013.30 and 4,108.20 is: 6,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.20 : 20,013.30 = 4,108.20 : x
  2. Step 2: Convert to fraction form
    13,342.20/20,013.30 = 4,108.20/x
  3. Step 3: Cross multiply
    13,342.20x = 20,013.30 × 4,108.20
  4. Step 4: Simplify right side
    13,342.20x = 82,218,639.06
  5. Step 5: Solve for x
    x = 82,218,639.06/13,342.20
  6. Step 6: Final answer
    x = 6,162.30

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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.