Home / 13,627.67-20,430.45-4,262.85

Finding the Fourth Proportional to 13,627.67, 20,430.45 and 4,262.85

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Solution

The fourth proportional to 13,627.67, 20,430.45 and 4,262.85 is: 6,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.67 : 20,430.45 = 4,262.85 : x
  2. Step 2: Convert to fraction form
    13,627.67/20,430.45 = 4,262.85/x
  3. Step 3: Cross multiply
    13,627.67x = 20,430.45 × 4,262.85
  4. Step 4: Simplify right side
    13,627.67x = 87,091,943.78
  5. Step 5: Solve for x
    x = 87,091,943.78/13,627.67
  6. Step 6: Final answer
    x = 6,390.82

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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.