Home / 18,412.36-25,407.85-10,858.33

Finding the Fourth Proportional to 18,412.36, 25,407.85 and 10,858.33

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Solution

The fourth proportional to 18,412.36, 25,407.85 and 10,858.33 is: 14,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.36 : 25,407.85 = 10,858.33 : x
  2. Step 2: Convert to fraction form
    18,412.36/25,407.85 = 10,858.33/x
  3. Step 3: Cross multiply
    18,412.36x = 25,407.85 × 10,858.33
  4. Step 4: Simplify right side
    18,412.36x = 275,886,819.89
  5. Step 5: Solve for x
    x = 275,886,819.89/18,412.36
  6. Step 6: Final answer
    x = 14,983.78

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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.