Home / 12,015.30-18,022.98-3,250.20

Finding the Fourth Proportional to 12,015.30, 18,022.98 and 3,250.20

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Solution

The fourth proportional to 12,015.30, 18,022.98 and 3,250.20 is: 4,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.30 : 18,022.98 = 3,250.20 : x
  2. Step 2: Convert to fraction form
    12,015.30/18,022.98 = 3,250.20/x
  3. Step 3: Cross multiply
    12,015.30x = 18,022.98 × 3,250.20
  4. Step 4: Simplify right side
    12,015.30x = 58,578,289.60
  5. Step 5: Solve for x
    x = 58,578,289.60/12,015.30
  6. Step 6: Final answer
    x = 4,875.31

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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.