Home / 10,209.96-15,310.74-3,187.59

Finding the Fourth Proportional to 10,209.96, 15,310.74 and 3,187.59

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Solution

The fourth proportional to 10,209.96, 15,310.74 and 3,187.59 is: 4,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.96 : 15,310.74 = 3,187.59 : x
  2. Step 2: Convert to fraction form
    10,209.96/15,310.74 = 3,187.59/x
  3. Step 3: Cross multiply
    10,209.96x = 15,310.74 × 3,187.59
  4. Step 4: Simplify right side
    10,209.96x = 48,804,361.72
  5. Step 5: Solve for x
    x = 48,804,361.72/10,209.96
  6. Step 6: Final answer
    x = 4,780.07

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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.