Home / 12,000.71-18,003.87-4,103.29

Finding the Fourth Proportional to 12,000.71, 18,003.87 and 4,103.29

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Solution

The fourth proportional to 12,000.71, 18,003.87 and 4,103.29 is: 6,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.71 : 18,003.87 = 4,103.29 : x
  2. Step 2: Convert to fraction form
    12,000.71/18,003.87 = 4,103.29/x
  3. Step 3: Cross multiply
    12,000.71x = 18,003.87 × 4,103.29
  4. Step 4: Simplify right side
    12,000.71x = 73,875,122.24
  5. Step 5: Solve for x
    x = 73,875,122.24/12,000.71
  6. Step 6: Final answer
    x = 6,155.90

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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.