Home / 13,992.24-19,303.20-8,400

Finding the Fourth Proportional to 13,992.24, 19,303.20 and 8,400

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Solution

The fourth proportional to 13,992.24, 19,303.20 and 8,400 is: 11,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.24 : 19,303.20 = 8,400 : x
  2. Step 2: Convert to fraction form
    13,992.24/19,303.20 = 8,400/x
  3. Step 3: Cross multiply
    13,992.24x = 19,303.20 × 8,400
  4. Step 4: Simplify right side
    13,992.24x = 162,146,880
  5. Step 5: Solve for x
    x = 162,146,880/13,992.24
  6. Step 6: Final answer
    x = 11,588.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.