Home / 11,578.57-15,979.12-6,542.67

Finding the Fourth Proportional to 11,578.57, 15,979.12 and 6,542.67

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Solution

The fourth proportional to 11,578.57, 15,979.12 and 6,542.67 is: 9,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.57 : 15,979.12 = 6,542.67 : x
  2. Step 2: Convert to fraction form
    11,578.57/15,979.12 = 6,542.67/x
  3. Step 3: Cross multiply
    11,578.57x = 15,979.12 × 6,542.67
  4. Step 4: Simplify right side
    11,578.57x = 104,546,189.42
  5. Step 5: Solve for x
    x = 104,546,189.42/11,578.57
  6. Step 6: Final answer
    x = 9,029.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.