Home / 13,720.26-18,933.84-7,432.62

Finding the Fourth Proportional to 13,720.26, 18,933.84 and 7,432.62

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Solution

The fourth proportional to 13,720.26, 18,933.84 and 7,432.62 is: 10,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.26 : 18,933.84 = 7,432.62 : x
  2. Step 2: Convert to fraction form
    13,720.26/18,933.84 = 7,432.62/x
  3. Step 3: Cross multiply
    13,720.26x = 18,933.84 × 7,432.62
  4. Step 4: Simplify right side
    13,720.26x = 140,728,037.86
  5. Step 5: Solve for x
    x = 140,728,037.86/13,720.26
  6. Step 6: Final answer
    x = 10,256.95

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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.