Home / 18,108.12-27,145.56-7,011.93

Finding the Fourth Proportional to 18,108.12, 27,145.56 and 7,011.93

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Solution

The fourth proportional to 18,108.12, 27,145.56 and 7,011.93 is: 10,511.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.12 : 27,145.56 = 7,011.93 : x
  2. Step 2: Convert to fraction form
    18,108.12/27,145.56 = 7,011.93/x
  3. Step 3: Cross multiply
    18,108.12x = 27,145.56 × 7,011.93
  4. Step 4: Simplify right side
    18,108.12x = 190,342,766.53
  5. Step 5: Solve for x
    x = 190,342,766.53/18,108.12
  6. Step 6: Final answer
    x = 10,511.46

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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.