Home / 12,580.47-18,876.09-4,261.37

Finding the Fourth Proportional to 12,580.47, 18,876.09 and 4,261.37

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Solution

The fourth proportional to 12,580.47, 18,876.09 and 4,261.37 is: 6,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.47 : 18,876.09 = 4,261.37 : x
  2. Step 2: Convert to fraction form
    12,580.47/18,876.09 = 4,261.37/x
  3. Step 3: Cross multiply
    12,580.47x = 18,876.09 × 4,261.37
  4. Step 4: Simplify right side
    12,580.47x = 80,437,925.24
  5. Step 5: Solve for x
    x = 80,437,925.24/12,580.47
  6. Step 6: Final answer
    x = 6,393.87

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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.