Home / 17,688.30-26,532.45-11,121.90

Finding the Fourth Proportional to 17,688.30, 26,532.45 and 11,121.90

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Solution

The fourth proportional to 17,688.30, 26,532.45 and 11,121.90 is: 16,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.30 : 26,532.45 = 11,121.90 : x
  2. Step 2: Convert to fraction form
    17,688.30/26,532.45 = 11,121.90/x
  3. Step 3: Cross multiply
    17,688.30x = 26,532.45 × 11,121.90
  4. Step 4: Simplify right side
    17,688.30x = 295,091,255.66
  5. Step 5: Solve for x
    x = 295,091,255.66/17,688.30
  6. Step 6: Final answer
    x = 16,682.85

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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.