Home / 18,438.55-27,657.97-5,291.34

Finding the Fourth Proportional to 18,438.55, 27,657.97 and 5,291.34

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Solution

The fourth proportional to 18,438.55, 27,657.97 and 5,291.34 is: 7,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.55 : 27,657.97 = 5,291.34 : x
  2. Step 2: Convert to fraction form
    18,438.55/27,657.97 = 5,291.34/x
  3. Step 3: Cross multiply
    18,438.55x = 27,657.97 × 5,291.34
  4. Step 4: Simplify right side
    18,438.55x = 146,347,584.69
  5. Step 5: Solve for x
    x = 146,347,584.69/18,438.55
  6. Step 6: Final answer
    x = 7,937.05

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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.