Home / 11,193.60-16,826.85-7,929.30

Finding the Fourth Proportional to 11,193.60, 16,826.85 and 7,929.30

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Solution

The fourth proportional to 11,193.60, 16,826.85 and 7,929.30 is: 11,919.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.60 : 16,826.85 = 7,929.30 : x
  2. Step 2: Convert to fraction form
    11,193.60/16,826.85 = 7,929.30/x
  3. Step 3: Cross multiply
    11,193.60x = 16,826.85 × 7,929.30
  4. Step 4: Simplify right side
    11,193.60x = 133,425,141.71
  5. Step 5: Solve for x
    x = 133,425,141.71/11,193.60
  6. Step 6: Final answer
    x = 11,919.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.