Home / 11,179.06-15,427.48-6,143.74

Finding the Fourth Proportional to 11,179.06, 15,427.48 and 6,143.74

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Solution

The fourth proportional to 11,179.06, 15,427.48 and 6,143.74 is: 8,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.06 : 15,427.48 = 6,143.74 : x
  2. Step 2: Convert to fraction form
    11,179.06/15,427.48 = 6,143.74/x
  3. Step 3: Cross multiply
    11,179.06x = 15,427.48 × 6,143.74
  4. Step 4: Simplify right side
    11,179.06x = 94,782,425.98
  5. Step 5: Solve for x
    x = 94,782,425.98/11,179.06
  6. Step 6: Final answer
    x = 8,478.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.