Home / 18,118.09-25,003.79-10,564.57

Finding the Fourth Proportional to 18,118.09, 25,003.79 and 10,564.57

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Solution

The fourth proportional to 18,118.09, 25,003.79 and 10,564.57 is: 14,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.09 : 25,003.79 = 10,564.57 : x
  2. Step 2: Convert to fraction form
    18,118.09/25,003.79 = 10,564.57/x
  3. Step 3: Cross multiply
    18,118.09x = 25,003.79 × 10,564.57
  4. Step 4: Simplify right side
    18,118.09x = 264,154,289.72
  5. Step 5: Solve for x
    x = 264,154,289.72/18,118.09
  6. Step 6: Final answer
    x = 14,579.59

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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.