Home / 13,042.40-19,563.60-9,105.80

Finding the Fourth Proportional to 13,042.40, 19,563.60 and 9,105.80

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Solution

The fourth proportional to 13,042.40, 19,563.60 and 9,105.80 is: 13,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.40 : 19,563.60 = 9,105.80 : x
  2. Step 2: Convert to fraction form
    13,042.40/19,563.60 = 9,105.80/x
  3. Step 3: Cross multiply
    13,042.40x = 19,563.60 × 9,105.80
  4. Step 4: Simplify right side
    13,042.40x = 178,142,228.88
  5. Step 5: Solve for x
    x = 178,142,228.88/13,042.40
  6. Step 6: Final answer
    x = 13,658.70

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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.