Home / 18,197.34-25,112.79-11,127.66

Finding the Fourth Proportional to 18,197.34, 25,112.79 and 11,127.66

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Solution

The fourth proportional to 18,197.34, 25,112.79 and 11,127.66 is: 15,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.34 : 25,112.79 = 11,127.66 : x
  2. Step 2: Convert to fraction form
    18,197.34/25,112.79 = 11,127.66/x
  3. Step 3: Cross multiply
    18,197.34x = 25,112.79 × 11,127.66
  4. Step 4: Simplify right side
    18,197.34x = 279,446,588.77
  5. Step 5: Solve for x
    x = 279,446,588.77/18,197.34
  6. Step 6: Final answer
    x = 15,356.45

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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.