Home / 18,645.21-27,967.50-7,551.72

Finding the Fourth Proportional to 18,645.21, 27,967.50 and 7,551.72

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Solution

The fourth proportional to 18,645.21, 27,967.50 and 7,551.72 is: 11,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.21 : 27,967.50 = 7,551.72 : x
  2. Step 2: Convert to fraction form
    18,645.21/27,967.50 = 7,551.72/x
  3. Step 3: Cross multiply
    18,645.21x = 27,967.50 × 7,551.72
  4. Step 4: Simplify right side
    18,645.21x = 211,202,729.10
  5. Step 5: Solve for x
    x = 211,202,729.10/18,645.21
  6. Step 6: Final answer
    x = 11,327.45

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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.