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Finding the Fourth Proportional to 9,780.03, 14,645.75 and 8,950.50

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Solution

The fourth proportional to 9,780.03, 14,645.75 and 8,950.50 is: 13,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.03 : 14,645.75 = 8,950.50 : x
  2. Step 2: Convert to fraction form
    9,780.03/14,645.75 = 8,950.50/x
  3. Step 3: Cross multiply
    9,780.03x = 14,645.75 × 8,950.50
  4. Step 4: Simplify right side
    9,780.03x = 131,086,740.62
  5. Step 5: Solve for x
    x = 131,086,740.62/9,780.03
  6. Step 6: Final answer
    x = 13,403.51

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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.