Home / 17,105.04-25,660.80-5,421.60

Finding the Fourth Proportional to 17,105.04, 25,660.80 and 5,421.60

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Solution

The fourth proportional to 17,105.04, 25,660.80 and 5,421.60 is: 8,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,105.04 : 25,660.80 = 5,421.60 : x
  2. Step 2: Convert to fraction form
    17,105.04/25,660.80 = 5,421.60/x
  3. Step 3: Cross multiply
    17,105.04x = 25,660.80 × 5,421.60
  4. Step 4: Simplify right side
    17,105.04x = 139,122,593.28
  5. Step 5: Solve for x
    x = 139,122,593.28/17,105.04
  6. Step 6: Final answer
    x = 8,133.43

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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.