Home / 18,865.40-26,022.67-11,203.47

Finding the Fourth Proportional to 18,865.40, 26,022.67 and 11,203.47

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Solution

The fourth proportional to 18,865.40, 26,022.67 and 11,203.47 is: 15,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.40 : 26,022.67 = 11,203.47 : x
  2. Step 2: Convert to fraction form
    18,865.40/26,022.67 = 11,203.47/x
  3. Step 3: Cross multiply
    18,865.40x = 26,022.67 × 11,203.47
  4. Step 4: Simplify right side
    18,865.40x = 291,544,237.68
  5. Step 5: Solve for x
    x = 291,544,237.68/18,865.40
  6. Step 6: Final answer
    x = 15,453.91

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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.