Home / 6,420.55-9,613.44-3,336.07

Finding the Fourth Proportional to 6,420.55, 9,613.44 and 3,336.07

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Solution

The fourth proportional to 6,420.55, 9,613.44 and 3,336.07 is: 4,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.55 : 9,613.44 = 3,336.07 : x
  2. Step 2: Convert to fraction form
    6,420.55/9,613.44 = 3,336.07/x
  3. Step 3: Cross multiply
    6,420.55x = 9,613.44 × 3,336.07
  4. Step 4: Simplify right side
    6,420.55x = 32,071,108.78
  5. Step 5: Solve for x
    x = 32,071,108.78/6,420.55
  6. Step 6: Final answer
    x = 4,995.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.