Home / 11,319.82-15,621.21-6,283.85

Finding the Fourth Proportional to 11,319.82, 15,621.21 and 6,283.85

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Solution

The fourth proportional to 11,319.82, 15,621.21 and 6,283.85 is: 8,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.82 : 15,621.21 = 6,283.85 : x
  2. Step 2: Convert to fraction form
    11,319.82/15,621.21 = 6,283.85/x
  3. Step 3: Cross multiply
    11,319.82x = 15,621.21 × 6,283.85
  4. Step 4: Simplify right side
    11,319.82x = 98,161,262.35
  5. Step 5: Solve for x
    x = 98,161,262.35/11,319.82
  6. Step 6: Final answer
    x = 8,671.63

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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.