Home / 18,127.99-25,005.54-11,995.66

Finding the Fourth Proportional to 18,127.99, 25,005.54 and 11,995.66

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Solution

The fourth proportional to 18,127.99, 25,005.54 and 11,995.66 is: 16,546.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.99 : 25,005.54 = 11,995.66 : x
  2. Step 2: Convert to fraction form
    18,127.99/25,005.54 = 11,995.66/x
  3. Step 3: Cross multiply
    18,127.99x = 25,005.54 × 11,995.66
  4. Step 4: Simplify right side
    18,127.99x = 299,957,955.96
  5. Step 5: Solve for x
    x = 299,957,955.96/18,127.99
  6. Step 6: Final answer
    x = 16,546.67

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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.