Home / 13,262.80-19,910.40-13,165.60

Finding the Fourth Proportional to 13,262.80, 19,910.40 and 13,165.60

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Solution

The fourth proportional to 13,262.80, 19,910.40 and 13,165.60 is: 19,764.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.80 : 19,910.40 = 13,165.60 : x
  2. Step 2: Convert to fraction form
    13,262.80/19,910.40 = 13,165.60/x
  3. Step 3: Cross multiply
    13,262.80x = 19,910.40 × 13,165.60
  4. Step 4: Simplify right side
    13,262.80x = 262,132,362.24
  5. Step 5: Solve for x
    x = 262,132,362.24/13,262.80
  6. Step 6: Final answer
    x = 19,764.48

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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.