Home / 9,780.70-14,669.55-3,206.89

Finding the Fourth Proportional to 9,780.70, 14,669.55 and 3,206.89

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Solution

The fourth proportional to 9,780.70, 14,669.55 and 3,206.89 is: 4,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.70 : 14,669.55 = 3,206.89 : x
  2. Step 2: Convert to fraction form
    9,780.70/14,669.55 = 3,206.89/x
  3. Step 3: Cross multiply
    9,780.70x = 14,669.55 × 3,206.89
  4. Step 4: Simplify right side
    9,780.70x = 47,043,633.20
  5. Step 5: Solve for x
    x = 47,043,633.20/9,780.70
  6. Step 6: Final answer
    x = 4,809.84

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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.