Home / 13,528.05-18,676.49-9,285.27

Finding the Fourth Proportional to 13,528.05, 18,676.49 and 9,285.27

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Solution

The fourth proportional to 13,528.05, 18,676.49 and 9,285.27 is: 12,819.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.05 : 18,676.49 = 9,285.27 : x
  2. Step 2: Convert to fraction form
    13,528.05/18,676.49 = 9,285.27/x
  3. Step 3: Cross multiply
    13,528.05x = 18,676.49 × 9,285.27
  4. Step 4: Simplify right side
    13,528.05x = 173,416,205.88
  5. Step 5: Solve for x
    x = 173,416,205.88/13,528.05
  6. Step 6: Final answer
    x = 12,819.01

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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.