Home / 12,013.60-18,018.09-3,246.31

Finding the Fourth Proportional to 12,013.60, 18,018.09 and 3,246.31

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Solution

The fourth proportional to 12,013.60, 18,018.09 and 3,246.31 is: 4,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.60 : 18,018.09 = 3,246.31 : x
  2. Step 2: Convert to fraction form
    12,013.60/18,018.09 = 3,246.31/x
  3. Step 3: Cross multiply
    12,013.60x = 18,018.09 × 3,246.31
  4. Step 4: Simplify right side
    12,013.60x = 58,492,305.75
  5. Step 5: Solve for x
    x = 58,492,305.75/12,013.60
  6. Step 6: Final answer
    x = 4,868.84

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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.