Home / 6,613.36-9,126.16-3,960.64

Finding the Fourth Proportional to 6,613.36, 9,126.16 and 3,960.64

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Solution

The fourth proportional to 6,613.36, 9,126.16 and 3,960.64 is: 5,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.36 : 9,126.16 = 3,960.64 : x
  2. Step 2: Convert to fraction form
    6,613.36/9,126.16 = 3,960.64/x
  3. Step 3: Cross multiply
    6,613.36x = 9,126.16 × 3,960.64
  4. Step 4: Simplify right side
    6,613.36x = 36,145,434.34
  5. Step 5: Solve for x
    x = 36,145,434.34/6,613.36
  6. Step 6: Final answer
    x = 5,465.52

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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.