Home / 11,161.08-15,399.72-6,444.48

Finding the Fourth Proportional to 11,161.08, 15,399.72 and 6,444.48

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Solution

The fourth proportional to 11,161.08, 15,399.72 and 6,444.48 is: 8,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.08 : 15,399.72 = 6,444.48 : x
  2. Step 2: Convert to fraction form
    11,161.08/15,399.72 = 6,444.48/x
  3. Step 3: Cross multiply
    11,161.08x = 15,399.72 × 6,444.48
  4. Step 4: Simplify right side
    11,161.08x = 99,243,187.55
  5. Step 5: Solve for x
    x = 99,243,187.55/11,161.08
  6. Step 6: Final answer
    x = 8,891.90

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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.