Home / 14,490.09-20,005.79-11,126.57

Finding the Fourth Proportional to 14,490.09, 20,005.79 and 11,126.57

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Solution

The fourth proportional to 14,490.09, 20,005.79 and 11,126.57 is: 15,361.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.09 : 20,005.79 = 11,126.57 : x
  2. Step 2: Convert to fraction form
    14,490.09/20,005.79 = 11,126.57/x
  3. Step 3: Cross multiply
    14,490.09x = 20,005.79 × 11,126.57
  4. Step 4: Simplify right side
    14,490.09x = 222,595,667.18
  5. Step 5: Solve for x
    x = 222,595,667.18/14,490.09
  6. Step 6: Final answer
    x = 15,361.92

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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.