Home / 12,325.41-18,478.88-4,000.46

Finding the Fourth Proportional to 12,325.41, 18,478.88 and 4,000.46

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Solution

The fourth proportional to 12,325.41, 18,478.88 and 4,000.46 is: 5,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,325.41 : 18,478.88 = 4,000.46 : x
  2. Step 2: Convert to fraction form
    12,325.41/18,478.88 = 4,000.46/x
  3. Step 3: Cross multiply
    12,325.41x = 18,478.88 × 4,000.46
  4. Step 4: Simplify right side
    12,325.41x = 73,923,937.89
  5. Step 5: Solve for x
    x = 73,923,937.89/12,325.41
  6. Step 6: Final answer
    x = 5,997.69

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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.