Home / 12,181.76-18,272.39-3,416.45

Finding the Fourth Proportional to 12,181.76, 18,272.39 and 3,416.45

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Solution

The fourth proportional to 12,181.76, 18,272.39 and 3,416.45 is: 5,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.76 : 18,272.39 = 3,416.45 : x
  2. Step 2: Convert to fraction form
    12,181.76/18,272.39 = 3,416.45/x
  3. Step 3: Cross multiply
    12,181.76x = 18,272.39 × 3,416.45
  4. Step 4: Simplify right side
    12,181.76x = 62,426,598.37
  5. Step 5: Solve for x
    x = 62,426,598.37/12,181.76
  6. Step 6: Final answer
    x = 5,124.60

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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.