Home / 13,651.48-20,480.10-4,292.45

Finding the Fourth Proportional to 13,651.48, 20,480.10 and 4,292.45

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Solution

The fourth proportional to 13,651.48, 20,480.10 and 4,292.45 is: 6,439.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.48 : 20,480.10 = 4,292.45 : x
  2. Step 2: Convert to fraction form
    13,651.48/20,480.10 = 4,292.45/x
  3. Step 3: Cross multiply
    13,651.48x = 20,480.10 × 4,292.45
  4. Step 4: Simplify right side
    13,651.48x = 87,909,805.25
  5. Step 5: Solve for x
    x = 87,909,805.25/13,651.48
  6. Step 6: Final answer
    x = 6,439.58

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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.