Home / 16,768.80-25,167.60-7,423.20

Finding the Fourth Proportional to 16,768.80, 25,167.60 and 7,423.20

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Solution

The fourth proportional to 16,768.80, 25,167.60 and 7,423.20 is: 11,141.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.80 : 25,167.60 = 7,423.20 : x
  2. Step 2: Convert to fraction form
    16,768.80/25,167.60 = 7,423.20/x
  3. Step 3: Cross multiply
    16,768.80x = 25,167.60 × 7,423.20
  4. Step 4: Simplify right side
    16,768.80x = 186,824,128.32
  5. Step 5: Solve for x
    x = 186,824,128.32/16,768.80
  6. Step 6: Final answer
    x = 11,141.17

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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.