Home / 13,454.43-18,573.84-10,422.81

Finding the Fourth Proportional to 13,454.43, 18,573.84 and 10,422.81

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Solution

The fourth proportional to 13,454.43, 18,573.84 and 10,422.81 is: 14,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.43 : 18,573.84 = 10,422.81 : x
  2. Step 2: Convert to fraction form
    13,454.43/18,573.84 = 10,422.81/x
  3. Step 3: Cross multiply
    13,454.43x = 18,573.84 × 10,422.81
  4. Step 4: Simplify right side
    13,454.43x = 193,591,512.42
  5. Step 5: Solve for x
    x = 193,591,512.42/13,454.43
  6. Step 6: Final answer
    x = 14,388.68

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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.