Home / 10,992.37-15,165.28-8,127.99

Finding the Fourth Proportional to 10,992.37, 15,165.28 and 8,127.99

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Solution

The fourth proportional to 10,992.37, 15,165.28 and 8,127.99 is: 11,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.37 : 15,165.28 = 8,127.99 : x
  2. Step 2: Convert to fraction form
    10,992.37/15,165.28 = 8,127.99/x
  3. Step 3: Cross multiply
    10,992.37x = 15,165.28 × 8,127.99
  4. Step 4: Simplify right side
    10,992.37x = 123,263,244.19
  5. Step 5: Solve for x
    x = 123,263,244.19/10,992.37
  6. Step 6: Final answer
    x = 11,213.53

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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.