Home / 18,446.21-25,425.42-13,070.45

Finding the Fourth Proportional to 18,446.21, 25,425.42 and 13,070.45

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Solution

The fourth proportional to 18,446.21, 25,425.42 and 13,070.45 is: 18,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.21 : 25,425.42 = 13,070.45 : x
  2. Step 2: Convert to fraction form
    18,446.21/25,425.42 = 13,070.45/x
  3. Step 3: Cross multiply
    18,446.21x = 25,425.42 × 13,070.45
  4. Step 4: Simplify right side
    18,446.21x = 332,321,680.84
  5. Step 5: Solve for x
    x = 332,321,680.84/18,446.21
  6. Step 6: Final answer
    x = 18,015.72

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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.