Home / 18,866.36-28,256.39-9,012.56

Finding the Fourth Proportional to 18,866.36, 28,256.39 and 9,012.56

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Solution

The fourth proportional to 18,866.36, 28,256.39 and 9,012.56 is: 13,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.36 : 28,256.39 = 9,012.56 : x
  2. Step 2: Convert to fraction form
    18,866.36/28,256.39 = 9,012.56/x
  3. Step 3: Cross multiply
    18,866.36x = 28,256.39 × 9,012.56
  4. Step 4: Simplify right side
    18,866.36x = 254,662,410.26
  5. Step 5: Solve for x
    x = 254,662,410.26/18,866.36
  6. Step 6: Final answer
    x = 13,498.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.