Home / 18,826.30-25,979.90-10,442.80

Finding the Fourth Proportional to 18,826.30, 25,979.90 and 10,442.80

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Solution

The fourth proportional to 18,826.30, 25,979.90 and 10,442.80 is: 14,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.30 : 25,979.90 = 10,442.80 : x
  2. Step 2: Convert to fraction form
    18,826.30/25,979.90 = 10,442.80/x
  3. Step 3: Cross multiply
    18,826.30x = 25,979.90 × 10,442.80
  4. Step 4: Simplify right side
    18,826.30x = 271,302,899.72
  5. Step 5: Solve for x
    x = 271,302,899.72/18,826.30
  6. Step 6: Final answer
    x = 14,410.85

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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.