Home / 10,130.44-15,195.66-8,091.40

Finding the Fourth Proportional to 10,130.44, 15,195.66 and 8,091.40

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Solution

The fourth proportional to 10,130.44, 15,195.66 and 8,091.40 is: 12,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.44 : 15,195.66 = 8,091.40 : x
  2. Step 2: Convert to fraction form
    10,130.44/15,195.66 = 8,091.40/x
  3. Step 3: Cross multiply
    10,130.44x = 15,195.66 × 8,091.40
  4. Step 4: Simplify right side
    10,130.44x = 122,954,163.32
  5. Step 5: Solve for x
    x = 122,954,163.32/10,130.44
  6. Step 6: Final answer
    x = 12,137.10

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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.