Home / 12,485.55-18,721.87-4,586.04

Finding the Fourth Proportional to 12,485.55, 18,721.87 and 4,586.04

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Solution

The fourth proportional to 12,485.55, 18,721.87 and 4,586.04 is: 6,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.55 : 18,721.87 = 4,586.04 : x
  2. Step 2: Convert to fraction form
    12,485.55/18,721.87 = 4,586.04/x
  3. Step 3: Cross multiply
    12,485.55x = 18,721.87 × 4,586.04
  4. Step 4: Simplify right side
    12,485.55x = 85,859,244.69
  5. Step 5: Solve for x
    x = 85,859,244.69/12,485.55
  6. Step 6: Final answer
    x = 6,876.69

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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.