Home / 18,360.90-25,329.78-11,284.74

Finding the Fourth Proportional to 18,360.90, 25,329.78 and 11,284.74

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Solution

The fourth proportional to 18,360.90, 25,329.78 and 11,284.74 is: 15,567.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.90 : 25,329.78 = 11,284.74 : x
  2. Step 2: Convert to fraction form
    18,360.90/25,329.78 = 11,284.74/x
  3. Step 3: Cross multiply
    18,360.90x = 25,329.78 × 11,284.74
  4. Step 4: Simplify right side
    18,360.90x = 285,839,981.56
  5. Step 5: Solve for x
    x = 285,839,981.56/18,360.90
  6. Step 6: Final answer
    x = 15,567.86

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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.