Home / 13,432.14-18,530.60-8,392.92

Finding the Fourth Proportional to 13,432.14, 18,530.60 and 8,392.92

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Solution

The fourth proportional to 13,432.14, 18,530.60 and 8,392.92 is: 11,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.14 : 18,530.60 = 8,392.92 : x
  2. Step 2: Convert to fraction form
    13,432.14/18,530.60 = 8,392.92/x
  3. Step 3: Cross multiply
    13,432.14x = 18,530.60 × 8,392.92
  4. Step 4: Simplify right side
    13,432.14x = 155,525,843.35
  5. Step 5: Solve for x
    x = 155,525,843.35/13,432.14
  6. Step 6: Final answer
    x = 11,578.64

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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.