Home / 18,311.85-25,261.07-11,586.15

Finding the Fourth Proportional to 18,311.85, 25,261.07 and 11,586.15

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Solution

The fourth proportional to 18,311.85, 25,261.07 and 11,586.15 is: 15,983.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.85 : 25,261.07 = 11,586.15 : x
  2. Step 2: Convert to fraction form
    18,311.85/25,261.07 = 11,586.15/x
  3. Step 3: Cross multiply
    18,311.85x = 25,261.07 × 11,586.15
  4. Step 4: Simplify right side
    18,311.85x = 292,678,419.88
  5. Step 5: Solve for x
    x = 292,678,419.88/18,311.85
  6. Step 6: Final answer
    x = 15,983.01

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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.