Home / 17,983.59-26,972.33-8,120.55

Finding the Fourth Proportional to 17,983.59, 26,972.33 and 8,120.55

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Solution

The fourth proportional to 17,983.59, 26,972.33 and 8,120.55 is: 12,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,983.59 : 26,972.33 = 8,120.55 : x
  2. Step 2: Convert to fraction form
    17,983.59/26,972.33 = 8,120.55/x
  3. Step 3: Cross multiply
    17,983.59x = 26,972.33 × 8,120.55
  4. Step 4: Simplify right side
    17,983.59x = 219,030,214.92
  5. Step 5: Solve for x
    x = 219,030,214.92/17,983.59
  6. Step 6: Final answer
    x = 12,179.45

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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.