Home / 12,624.26-17,405.28-8,638.52

Finding the Fourth Proportional to 12,624.26, 17,405.28 and 8,638.52

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Solution

The fourth proportional to 12,624.26, 17,405.28 and 8,638.52 is: 11,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.26 : 17,405.28 = 8,638.52 : x
  2. Step 2: Convert to fraction form
    12,624.26/17,405.28 = 8,638.52/x
  3. Step 3: Cross multiply
    12,624.26x = 17,405.28 × 8,638.52
  4. Step 4: Simplify right side
    12,624.26x = 150,355,772.36
  5. Step 5: Solve for x
    x = 150,355,772.36/12,624.26
  6. Step 6: Final answer
    x = 11,910.07

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1.5x scale

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.