Home / 11,535.48-15,919.11-6,819.75

Finding the Fourth Proportional to 11,535.48, 15,919.11 and 6,819.75

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Solution

The fourth proportional to 11,535.48, 15,919.11 and 6,819.75 is: 9,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,535.48 : 15,919.11 = 6,819.75 : x
  2. Step 2: Convert to fraction form
    11,535.48/15,919.11 = 6,819.75/x
  3. Step 3: Cross multiply
    11,535.48x = 15,919.11 × 6,819.75
  4. Step 4: Simplify right side
    11,535.48x = 108,564,350.42
  5. Step 5: Solve for x
    x = 108,564,350.42/11,535.48
  6. Step 6: Final answer
    x = 9,411.34

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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.