Home / 13,612.48-20,404.50-9,230.20

Finding the Fourth Proportional to 13,612.48, 20,404.50 and 9,230.20

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Solution

The fourth proportional to 13,612.48, 20,404.50 and 9,230.20 is: 13,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.48 : 20,404.50 = 9,230.20 : x
  2. Step 2: Convert to fraction form
    13,612.48/20,404.50 = 9,230.20/x
  3. Step 3: Cross multiply
    13,612.48x = 20,404.50 × 9,230.20
  4. Step 4: Simplify right side
    13,612.48x = 188,337,615.90
  5. Step 5: Solve for x
    x = 188,337,615.90/13,612.48
  6. Step 6: Final answer
    x = 13,835.66

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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.