Home / 18,520.59-27,775.93-5,192.85

Finding the Fourth Proportional to 18,520.59, 27,775.93 and 5,192.85

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Solution

The fourth proportional to 18,520.59, 27,775.93 and 5,192.85 is: 7,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.59 : 27,775.93 = 5,192.85 : x
  2. Step 2: Convert to fraction form
    18,520.59/27,775.93 = 5,192.85/x
  3. Step 3: Cross multiply
    18,520.59x = 27,775.93 × 5,192.85
  4. Step 4: Simplify right side
    18,520.59x = 144,236,238.10
  5. Step 5: Solve for x
    x = 144,236,238.10/18,520.59
  6. Step 6: Final answer
    x = 7,787.89

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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.