Home / 12,573.62-18,862.73-4,140.60

Finding the Fourth Proportional to 12,573.62, 18,862.73 and 4,140.60

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Solution

The fourth proportional to 12,573.62, 18,862.73 and 4,140.60 is: 6,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.62 : 18,862.73 = 4,140.60 : x
  2. Step 2: Convert to fraction form
    12,573.62/18,862.73 = 4,140.60/x
  3. Step 3: Cross multiply
    12,573.62x = 18,862.73 × 4,140.60
  4. Step 4: Simplify right side
    12,573.62x = 78,102,999.14
  5. Step 5: Solve for x
    x = 78,102,999.14/12,573.62
  6. Step 6: Final answer
    x = 6,211.66

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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.