Home / 16,960.80-25,455.60-7,615.20

Finding the Fourth Proportional to 16,960.80, 25,455.60 and 7,615.20

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Solution

The fourth proportional to 16,960.80, 25,455.60 and 7,615.20 is: 11,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,960.80 : 25,455.60 = 7,615.20 : x
  2. Step 2: Convert to fraction form
    16,960.80/25,455.60 = 7,615.20/x
  3. Step 3: Cross multiply
    16,960.80x = 25,455.60 × 7,615.20
  4. Step 4: Simplify right side
    16,960.80x = 193,849,485.12
  5. Step 5: Solve for x
    x = 193,849,485.12/16,960.80
  6. Step 6: Final answer
    x = 11,429.27

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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.