Home / 18,511.87-25,535.99-11,345.25

Finding the Fourth Proportional to 18,511.87, 25,535.99 and 11,345.25

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Solution

The fourth proportional to 18,511.87, 25,535.99 and 11,345.25 is: 15,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.87 : 25,535.99 = 11,345.25 : x
  2. Step 2: Convert to fraction form
    18,511.87/25,535.99 = 11,345.25/x
  3. Step 3: Cross multiply
    18,511.87x = 25,535.99 × 11,345.25
  4. Step 4: Simplify right side
    18,511.87x = 289,712,282.75
  5. Step 5: Solve for x
    x = 289,712,282.75/18,511.87
  6. Step 6: Final answer
    x = 15,650.09

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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.