Home / 18,503.90-27,757.60-5,176.89

Finding the Fourth Proportional to 18,503.90, 27,757.60 and 5,176.89

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Solution

The fourth proportional to 18,503.90, 27,757.60 and 5,176.89 is: 7,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.90 : 27,757.60 = 5,176.89 : x
  2. Step 2: Convert to fraction form
    18,503.90/27,757.60 = 5,176.89/x
  3. Step 3: Cross multiply
    18,503.90x = 27,757.60 × 5,176.89
  4. Step 4: Simplify right side
    18,503.90x = 143,698,041.86
  5. Step 5: Solve for x
    x = 143,698,041.86/18,503.90
  6. Step 6: Final answer
    x = 7,765.82

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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.