Home / 12,133.20-18,205.20-5,890.80

Finding the Fourth Proportional to 12,133.20, 18,205.20 and 5,890.80

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Solution

The fourth proportional to 12,133.20, 18,205.20 and 5,890.80 is: 8,838.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.20 : 18,205.20 = 5,890.80 : x
  2. Step 2: Convert to fraction form
    12,133.20/18,205.20 = 5,890.80/x
  3. Step 3: Cross multiply
    12,133.20x = 18,205.20 × 5,890.80
  4. Step 4: Simplify right side
    12,133.20x = 107,243,192.16
  5. Step 5: Solve for x
    x = 107,243,192.16/12,133.20
  6. Step 6: Final answer
    x = 8,838.82

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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.