Home / 11,820.13-17,730.69-5,500.92

Finding the Fourth Proportional to 11,820.13, 17,730.69 and 5,500.92

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Solution

The fourth proportional to 11,820.13, 17,730.69 and 5,500.92 is: 8,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.13 : 17,730.69 = 5,500.92 : x
  2. Step 2: Convert to fraction form
    11,820.13/17,730.69 = 5,500.92/x
  3. Step 3: Cross multiply
    11,820.13x = 17,730.69 × 5,500.92
  4. Step 4: Simplify right side
    11,820.13x = 97,535,153.10
  5. Step 5: Solve for x
    x = 97,535,153.10/11,820.13
  6. Step 6: Final answer
    x = 8,251.62

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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.