Home / 12,636.25-17,432.39-7,327.99

Finding the Fourth Proportional to 12,636.25, 17,432.39 and 7,327.99

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Solution

The fourth proportional to 12,636.25, 17,432.39 and 7,327.99 is: 10,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.25 : 17,432.39 = 7,327.99 : x
  2. Step 2: Convert to fraction form
    12,636.25/17,432.39 = 7,327.99/x
  3. Step 3: Cross multiply
    12,636.25x = 17,432.39 × 7,327.99
  4. Step 4: Simplify right side
    12,636.25x = 127,744,378.49
  5. Step 5: Solve for x
    x = 127,744,378.49/12,636.25
  6. Step 6: Final answer
    x = 10,109.36

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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.