Home / 8,328.80-12,485.02-4,162.57

Finding the Fourth Proportional to 8,328.80, 12,485.02 and 4,162.57

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Solution

The fourth proportional to 8,328.80, 12,485.02 and 4,162.57 is: 6,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.80 : 12,485.02 = 4,162.57 : x
  2. Step 2: Convert to fraction form
    8,328.80/12,485.02 = 4,162.57/x
  3. Step 3: Cross multiply
    8,328.80x = 12,485.02 × 4,162.57
  4. Step 4: Simplify right side
    8,328.80x = 51,969,769.70
  5. Step 5: Solve for x
    x = 51,969,769.70/8,328.80
  6. Step 6: Final answer
    x = 6,239.77

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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.