Home / 10,996.45-15,174.91-6,216.31

Finding the Fourth Proportional to 10,996.45, 15,174.91 and 6,216.31

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Solution

The fourth proportional to 10,996.45, 15,174.91 and 6,216.31 is: 8,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.45 : 15,174.91 = 6,216.31 : x
  2. Step 2: Convert to fraction form
    10,996.45/15,174.91 = 6,216.31/x
  3. Step 3: Cross multiply
    10,996.45x = 15,174.91 × 6,216.31
  4. Step 4: Simplify right side
    10,996.45x = 94,331,971.52
  5. Step 5: Solve for x
    x = 94,331,971.52/10,996.45
  6. Step 6: Final answer
    x = 8,578.40

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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.