Home / 18,507.40-25,536.12-11,338.83

Finding the Fourth Proportional to 18,507.40, 25,536.12 and 11,338.83

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Solution

The fourth proportional to 18,507.40, 25,536.12 and 11,338.83 is: 15,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.40 : 25,536.12 = 11,338.83 : x
  2. Step 2: Convert to fraction form
    18,507.40/25,536.12 = 11,338.83/x
  3. Step 3: Cross multiply
    18,507.40x = 25,536.12 × 11,338.83
  4. Step 4: Simplify right side
    18,507.40x = 289,549,723.54
  5. Step 5: Solve for x
    x = 289,549,723.54/18,507.40
  6. Step 6: Final answer
    x = 15,645.08

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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.