Home / 8,729.48-13,090.16-3,178.96

Finding the Fourth Proportional to 8,729.48, 13,090.16 and 3,178.96

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Solution

The fourth proportional to 8,729.48, 13,090.16 and 3,178.96 is: 4,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.48 : 13,090.16 = 3,178.96 : x
  2. Step 2: Convert to fraction form
    8,729.48/13,090.16 = 3,178.96/x
  3. Step 3: Cross multiply
    8,729.48x = 13,090.16 × 3,178.96
  4. Step 4: Simplify right side
    8,729.48x = 41,613,095.03
  5. Step 5: Solve for x
    x = 41,613,095.03/8,729.48
  6. Step 6: Final answer
    x = 4,766.96

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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.