Home / 16,749.74-25,125.14-8,425.21

Finding the Fourth Proportional to 16,749.74, 25,125.14 and 8,425.21

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Solution

The fourth proportional to 16,749.74, 25,125.14 and 8,425.21 is: 12,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,749.74 : 25,125.14 = 8,425.21 : x
  2. Step 2: Convert to fraction form
    16,749.74/25,125.14 = 8,425.21/x
  3. Step 3: Cross multiply
    16,749.74x = 25,125.14 × 8,425.21
  4. Step 4: Simplify right side
    16,749.74x = 211,684,580.78
  5. Step 5: Solve for x
    x = 211,684,580.78/16,749.74
  6. Step 6: Final answer
    x = 12,638.08

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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.