Home / 13,659.54-20,489.28-4,895.13

Finding the Fourth Proportional to 13,659.54, 20,489.28 and 4,895.13

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Solution

The fourth proportional to 13,659.54, 20,489.28 and 4,895.13 is: 7,342.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.54 : 20,489.28 = 4,895.13 : x
  2. Step 2: Convert to fraction form
    13,659.54/20,489.28 = 4,895.13/x
  3. Step 3: Cross multiply
    13,659.54x = 20,489.28 × 4,895.13
  4. Step 4: Simplify right side
    13,659.54x = 100,297,689.21
  5. Step 5: Solve for x
    x = 100,297,689.21/13,659.54
  6. Step 6: Final answer
    x = 7,342.68

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1.5x scale

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.