Home / 18,105.07-27,160.35-6,415.57

Finding the Fourth Proportional to 18,105.07, 27,160.35 and 6,415.57

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Solution

The fourth proportional to 18,105.07, 27,160.35 and 6,415.57 is: 9,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.07 : 27,160.35 = 6,415.57 : x
  2. Step 2: Convert to fraction form
    18,105.07/27,160.35 = 6,415.57/x
  3. Step 3: Cross multiply
    18,105.07x = 27,160.35 × 6,415.57
  4. Step 4: Simplify right side
    18,105.07x = 174,249,126.65
  5. Step 5: Solve for x
    x = 174,249,126.65/18,105.07
  6. Step 6: Final answer
    x = 9,624.33

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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.