Home / 10,126.38-15,187.67-8,163.47

Finding the Fourth Proportional to 10,126.38, 15,187.67 and 8,163.47

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Solution

The fourth proportional to 10,126.38, 15,187.67 and 8,163.47 is: 12,243.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.38 : 15,187.67 = 8,163.47 : x
  2. Step 2: Convert to fraction form
    10,126.38/15,187.67 = 8,163.47/x
  3. Step 3: Cross multiply
    10,126.38x = 15,187.67 × 8,163.47
  4. Step 4: Simplify right side
    10,126.38x = 123,984,088.41
  5. Step 5: Solve for x
    x = 123,984,088.41/10,126.38
  6. Step 6: Final answer
    x = 12,243.67

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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.