Home / 8,645.40-12,966.05-3,962.49

Finding the Fourth Proportional to 8,645.40, 12,966.05 and 3,962.49

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Solution

The fourth proportional to 8,645.40, 12,966.05 and 3,962.49 is: 5,942.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.40 : 12,966.05 = 3,962.49 : x
  2. Step 2: Convert to fraction form
    8,645.40/12,966.05 = 3,962.49/x
  3. Step 3: Cross multiply
    8,645.40x = 12,966.05 × 3,962.49
  4. Step 4: Simplify right side
    8,645.40x = 51,377,804.75
  5. Step 5: Solve for x
    x = 51,377,804.75/8,645.40
  6. Step 6: Final answer
    x = 5,942.79

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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.