Home / 12,416.08-18,612.60-5,486.80

Finding the Fourth Proportional to 12,416.08, 18,612.60 and 5,486.80

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Solution

The fourth proportional to 12,416.08, 18,612.60 and 5,486.80 is: 8,225.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.08 : 18,612.60 = 5,486.80 : x
  2. Step 2: Convert to fraction form
    12,416.08/18,612.60 = 5,486.80/x
  3. Step 3: Cross multiply
    12,416.08x = 18,612.60 × 5,486.80
  4. Step 4: Simplify right side
    12,416.08x = 102,123,613.68
  5. Step 5: Solve for x
    x = 102,123,613.68/12,416.08
  6. Step 6: Final answer
    x = 8,225.11

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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.