Home / 13,040.08-19,579.68-12,586.48

Finding the Fourth Proportional to 13,040.08, 19,579.68 and 12,586.48

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Solution

The fourth proportional to 13,040.08, 19,579.68 and 12,586.48 is: 18,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.08 : 19,579.68 = 12,586.48 : x
  2. Step 2: Convert to fraction form
    13,040.08/19,579.68 = 12,586.48/x
  3. Step 3: Cross multiply
    13,040.08x = 19,579.68 × 12,586.48
  4. Step 4: Simplify right side
    13,040.08x = 246,439,250.73
  5. Step 5: Solve for x
    x = 246,439,250.73/13,040.08
  6. Step 6: Final answer
    x = 18,898.60

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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.