Home / 6,621.72-9,144.54-5,305.56

Finding the Fourth Proportional to 6,621.72, 9,144.54 and 5,305.56

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Solution

The fourth proportional to 6,621.72, 9,144.54 and 5,305.56 is: 7,326.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.72 : 9,144.54 = 5,305.56 : x
  2. Step 2: Convert to fraction form
    6,621.72/9,144.54 = 5,305.56/x
  3. Step 3: Cross multiply
    6,621.72x = 9,144.54 × 5,305.56
  4. Step 4: Simplify right side
    6,621.72x = 48,516,905.64
  5. Step 5: Solve for x
    x = 48,516,905.64/6,621.72
  6. Step 6: Final answer
    x = 7,326.93

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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.