Home / 6,621.08-9,135.09-3,967.52

Finding the Fourth Proportional to 6,621.08, 9,135.09 and 3,967.52

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Solution

The fourth proportional to 6,621.08, 9,135.09 and 3,967.52 is: 5,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.08 : 9,135.09 = 3,967.52 : x
  2. Step 2: Convert to fraction form
    6,621.08/9,135.09 = 3,967.52/x
  3. Step 3: Cross multiply
    6,621.08x = 9,135.09 × 3,967.52
  4. Step 4: Simplify right side
    6,621.08x = 36,243,606.60
  5. Step 5: Solve for x
    x = 36,243,606.60/6,621.08
  6. Step 6: Final answer
    x = 5,473.98

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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.