Home / 18,218.70-25,142.09-10,152.36

Finding the Fourth Proportional to 18,218.70, 25,142.09 and 10,152.36

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Solution

The fourth proportional to 18,218.70, 25,142.09 and 10,152.36 is: 14,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.70 : 25,142.09 = 10,152.36 : x
  2. Step 2: Convert to fraction form
    18,218.70/25,142.09 = 10,152.36/x
  3. Step 3: Cross multiply
    18,218.70x = 25,142.09 × 10,152.36
  4. Step 4: Simplify right side
    18,218.70x = 255,251,548.83
  5. Step 5: Solve for x
    x = 255,251,548.83/18,218.70
  6. Step 6: Final answer
    x = 14,010.42

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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.