Home / 18,672.40-25,765.58-12,635.84

Finding the Fourth Proportional to 18,672.40, 25,765.58 and 12,635.84

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Solution

The fourth proportional to 18,672.40, 25,765.58 and 12,635.84 is: 17,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.40 : 25,765.58 = 12,635.84 : x
  2. Step 2: Convert to fraction form
    18,672.40/25,765.58 = 12,635.84/x
  3. Step 3: Cross multiply
    18,672.40x = 25,765.58 × 12,635.84
  4. Step 4: Simplify right side
    18,672.40x = 325,569,746.39
  5. Step 5: Solve for x
    x = 325,569,746.39/18,672.40
  6. Step 6: Final answer
    x = 17,435.88

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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.