Home / 18,357.34-27,536.28-5,209.75

Finding the Fourth Proportional to 18,357.34, 27,536.28 and 5,209.75

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Solution

The fourth proportional to 18,357.34, 27,536.28 and 5,209.75 is: 7,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.34 : 27,536.28 = 5,209.75 : x
  2. Step 2: Convert to fraction form
    18,357.34/27,536.28 = 5,209.75/x
  3. Step 3: Cross multiply
    18,357.34x = 27,536.28 × 5,209.75
  4. Step 4: Simplify right side
    18,357.34x = 143,457,134.73
  5. Step 5: Solve for x
    x = 143,457,134.73/18,357.34
  6. Step 6: Final answer
    x = 7,814.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.