Home / 11,334.87-15,644.75-6,621.89

Finding the Fourth Proportional to 11,334.87, 15,644.75 and 6,621.89

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Solution

The fourth proportional to 11,334.87, 15,644.75 and 6,621.89 is: 9,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.87 : 15,644.75 = 6,621.89 : x
  2. Step 2: Convert to fraction form
    11,334.87/15,644.75 = 6,621.89/x
  3. Step 3: Cross multiply
    11,334.87x = 15,644.75 × 6,621.89
  4. Step 4: Simplify right side
    11,334.87x = 103,597,702.24
  5. Step 5: Solve for x
    x = 103,597,702.24/11,334.87
  6. Step 6: Final answer
    x = 9,139.73

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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.