Home / 14,780.52-20,400.54-9,745.62

Finding the Fourth Proportional to 14,780.52, 20,400.54 and 9,745.62

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Solution

The fourth proportional to 14,780.52, 20,400.54 and 9,745.62 is: 13,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.52 : 20,400.54 = 9,745.62 : x
  2. Step 2: Convert to fraction form
    14,780.52/20,400.54 = 9,745.62/x
  3. Step 3: Cross multiply
    14,780.52x = 20,400.54 × 9,745.62
  4. Step 4: Simplify right side
    14,780.52x = 198,815,910.63
  5. Step 5: Solve for x
    x = 198,815,910.63/14,780.52
  6. Step 6: Final answer
    x = 13,451.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.