Home / 13,218.20-19,827.30-8,840.60

Finding the Fourth Proportional to 13,218.20, 19,827.30 and 8,840.60

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Solution

The fourth proportional to 13,218.20, 19,827.30 and 8,840.60 is: 13,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.20 : 19,827.30 = 8,840.60 : x
  2. Step 2: Convert to fraction form
    13,218.20/19,827.30 = 8,840.60/x
  3. Step 3: Cross multiply
    13,218.20x = 19,827.30 × 8,840.60
  4. Step 4: Simplify right side
    13,218.20x = 175,285,228.38
  5. Step 5: Solve for x
    x = 175,285,228.38/13,218.20
  6. Step 6: Final answer
    x = 13,260.90

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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.