Home / 18,338.95-27,513.06-5,191.44

Finding the Fourth Proportional to 18,338.95, 27,513.06 and 5,191.44

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Solution

The fourth proportional to 18,338.95, 27,513.06 and 5,191.44 is: 7,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.95 : 27,513.06 = 5,191.44 : x
  2. Step 2: Convert to fraction form
    18,338.95/27,513.06 = 5,191.44/x
  3. Step 3: Cross multiply
    18,338.95x = 27,513.06 × 5,191.44
  4. Step 4: Simplify right side
    18,338.95x = 142,832,262.64
  5. Step 5: Solve for x
    x = 142,832,262.64/18,338.95
  6. Step 6: Final answer
    x = 7,788.46

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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.