Home / 11,935.78-17,895.13-5,607.12

Finding the Fourth Proportional to 11,935.78, 17,895.13 and 5,607.12

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Solution

The fourth proportional to 11,935.78, 17,895.13 and 5,607.12 is: 8,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.78 : 17,895.13 = 5,607.12 : x
  2. Step 2: Convert to fraction form
    11,935.78/17,895.13 = 5,607.12/x
  3. Step 3: Cross multiply
    11,935.78x = 17,895.13 × 5,607.12
  4. Step 4: Simplify right side
    11,935.78x = 100,340,141.33
  5. Step 5: Solve for x
    x = 100,340,141.33/11,935.78
  6. Step 6: Final answer
    x = 8,406.67

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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.