Home / 18,826.60-25,928.10-18,418.44

Finding the Fourth Proportional to 18,826.60, 25,928.10 and 18,418.44

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Solution

The fourth proportional to 18,826.60, 25,928.10 and 18,418.44 is: 25,365.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.60 : 25,928.10 = 18,418.44 : x
  2. Step 2: Convert to fraction form
    18,826.60/25,928.10 = 18,418.44/x
  3. Step 3: Cross multiply
    18,826.60x = 25,928.10 × 18,418.44
  4. Step 4: Simplify right side
    18,826.60x = 477,555,154.16
  5. Step 5: Solve for x
    x = 477,555,154.16/18,826.60
  6. Step 6: Final answer
    x = 25,365.98

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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.