Home / 18,679.76-25,777.90-10,181.66

Finding the Fourth Proportional to 18,679.76, 25,777.90 and 10,181.66

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Solution

The fourth proportional to 18,679.76, 25,777.90 and 10,181.66 is: 14,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.76 : 25,777.90 = 10,181.66 : x
  2. Step 2: Convert to fraction form
    18,679.76/25,777.90 = 10,181.66/x
  3. Step 3: Cross multiply
    18,679.76x = 25,777.90 × 10,181.66
  4. Step 4: Simplify right side
    18,679.76x = 262,461,813.31
  5. Step 5: Solve for x
    x = 262,461,813.31/18,679.76
  6. Step 6: Final answer
    x = 14,050.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.