Home / 18,720.52-25,837.58-11,167.34

Finding the Fourth Proportional to 18,720.52, 25,837.58 and 11,167.34

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Solution

The fourth proportional to 18,720.52, 25,837.58 and 11,167.34 is: 15,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.52 : 25,837.58 = 11,167.34 : x
  2. Step 2: Convert to fraction form
    18,720.52/25,837.58 = 11,167.34/x
  3. Step 3: Cross multiply
    18,720.52x = 25,837.58 × 11,167.34
  4. Step 4: Simplify right side
    18,720.52x = 288,536,939.37
  5. Step 5: Solve for x
    x = 288,536,939.37/18,720.52
  6. Step 6: Final answer
    x = 15,412.87

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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.