Home / 18,171.35-27,267.59-7,640.60

Finding the Fourth Proportional to 18,171.35, 27,267.59 and 7,640.60

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Solution

The fourth proportional to 18,171.35, 27,267.59 and 7,640.60 is: 11,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.35 : 27,267.59 = 7,640.60 : x
  2. Step 2: Convert to fraction form
    18,171.35/27,267.59 = 7,640.60/x
  3. Step 3: Cross multiply
    18,171.35x = 27,267.59 × 7,640.60
  4. Step 4: Simplify right side
    18,171.35x = 208,340,835.42
  5. Step 5: Solve for x
    x = 208,340,835.42/18,171.35
  6. Step 6: Final answer
    x = 11,465.35

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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.