Home / 13,748.13-20,630.00-7,422.92

Finding the Fourth Proportional to 13,748.13, 20,630.00 and 7,422.92

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Solution

The fourth proportional to 13,748.13, 20,630.00 and 7,422.92 is: 11,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.13 : 20,630.00 = 7,422.92 : x
  2. Step 2: Convert to fraction form
    13,748.13/20,630.00 = 7,422.92/x
  3. Step 3: Cross multiply
    13,748.13x = 20,630.00 × 7,422.92
  4. Step 4: Simplify right side
    13,748.13x = 153,134,889.13
  5. Step 5: Solve for x
    x = 153,134,889.13/13,748.13
  6. Step 6: Final answer
    x = 11,138.60

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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.