Home / 10,091.39-15,136.90-4,540.79

Finding the Fourth Proportional to 10,091.39, 15,136.90 and 4,540.79

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Solution

The fourth proportional to 10,091.39, 15,136.90 and 4,540.79 is: 6,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.39 : 15,136.90 = 4,540.79 : x
  2. Step 2: Convert to fraction form
    10,091.39/15,136.90 = 4,540.79/x
  3. Step 3: Cross multiply
    10,091.39x = 15,136.90 × 4,540.79
  4. Step 4: Simplify right side
    10,091.39x = 68,733,510.64
  5. Step 5: Solve for x
    x = 68,733,510.64/10,091.39
  6. Step 6: Final answer
    x = 6,811.11

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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.