Home / 18,375.51-25,358.07-9,992.01

Finding the Fourth Proportional to 18,375.51, 25,358.07 and 9,992.01

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Solution

The fourth proportional to 18,375.51, 25,358.07 and 9,992.01 is: 13,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.51 : 25,358.07 = 9,992.01 : x
  2. Step 2: Convert to fraction form
    18,375.51/25,358.07 = 9,992.01/x
  3. Step 3: Cross multiply
    18,375.51x = 25,358.07 × 9,992.01
  4. Step 4: Simplify right side
    18,375.51x = 253,377,962.23
  5. Step 5: Solve for x
    x = 253,377,962.23/18,375.51
  6. Step 6: Final answer
    x = 13,788.90

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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.