Home / 12,410.65-18,613.77-4,090.78

Finding the Fourth Proportional to 12,410.65, 18,613.77 and 4,090.78

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Solution

The fourth proportional to 12,410.65, 18,613.77 and 4,090.78 is: 6,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.65 : 18,613.77 = 4,090.78 : x
  2. Step 2: Convert to fraction form
    12,410.65/18,613.77 = 4,090.78/x
  3. Step 3: Cross multiply
    12,410.65x = 18,613.77 × 4,090.78
  4. Step 4: Simplify right side
    12,410.65x = 76,144,838.04
  5. Step 5: Solve for x
    x = 76,144,838.04/12,410.65
  6. Step 6: Final answer
    x = 6,135.44

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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.