Home / 11,153.44-15,391.72-6,437.72

Finding the Fourth Proportional to 11,153.44, 15,391.72 and 6,437.72

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Solution

The fourth proportional to 11,153.44, 15,391.72 and 6,437.72 is: 8,884.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.44 : 15,391.72 = 6,437.72 : x
  2. Step 2: Convert to fraction form
    11,153.44/15,391.72 = 6,437.72/x
  3. Step 3: Cross multiply
    11,153.44x = 15,391.72 × 6,437.72
  4. Step 4: Simplify right side
    11,153.44x = 99,087,583.68
  5. Step 5: Solve for x
    x = 99,087,583.68/11,153.44
  6. Step 6: Final answer
    x = 8,884.04

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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.