Home / 14,501.26-20,021.38-11,138.06

Finding the Fourth Proportional to 14,501.26, 20,021.38 and 11,138.06

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Solution

The fourth proportional to 14,501.26, 20,021.38 and 11,138.06 is: 15,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,501.26 : 20,021.38 = 11,138.06 : x
  2. Step 2: Convert to fraction form
    14,501.26/20,021.38 = 11,138.06/x
  3. Step 3: Cross multiply
    14,501.26x = 20,021.38 × 11,138.06
  4. Step 4: Simplify right side
    14,501.26x = 222,999,331.72
  5. Step 5: Solve for x
    x = 222,999,331.72/14,501.26
  6. Step 6: Final answer
    x = 15,377.93

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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.