Home / 13,542.90-20,314.92-4,777.86

Finding the Fourth Proportional to 13,542.90, 20,314.92 and 4,777.86

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Solution

The fourth proportional to 13,542.90, 20,314.92 and 4,777.86 is: 7,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.90 : 20,314.92 = 4,777.86 : x
  2. Step 2: Convert to fraction form
    13,542.90/20,314.92 = 4,777.86/x
  3. Step 3: Cross multiply
    13,542.90x = 20,314.92 × 4,777.86
  4. Step 4: Simplify right side
    13,542.90x = 97,061,843.67
  5. Step 5: Solve for x
    x = 97,061,843.67/13,542.90
  6. Step 6: Final answer
    x = 7,166.99

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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.