Home / 12,406.67-18,611.18-4,086.71

Finding the Fourth Proportional to 12,406.67, 18,611.18 and 4,086.71

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Solution

The fourth proportional to 12,406.67, 18,611.18 and 4,086.71 is: 6,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.67 : 18,611.18 = 4,086.71 : x
  2. Step 2: Convert to fraction form
    12,406.67/18,611.18 = 4,086.71/x
  3. Step 3: Cross multiply
    12,406.67x = 18,611.18 × 4,086.71
  4. Step 4: Simplify right side
    12,406.67x = 76,058,381.93
  5. Step 5: Solve for x
    x = 76,058,381.93/12,406.67
  6. Step 6: Final answer
    x = 6,130.45

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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.