Home / 18,834.31-25,989.57-11,280.50

Finding the Fourth Proportional to 18,834.31, 25,989.57 and 11,280.50

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Solution

The fourth proportional to 18,834.31, 25,989.57 and 11,280.50 is: 15,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.31 : 25,989.57 = 11,280.50 : x
  2. Step 2: Convert to fraction form
    18,834.31/25,989.57 = 11,280.50/x
  3. Step 3: Cross multiply
    18,834.31x = 25,989.57 × 11,280.50
  4. Step 4: Simplify right side
    18,834.31x = 293,175,344.39
  5. Step 5: Solve for x
    x = 293,175,344.39/18,834.31
  6. Step 6: Final answer
    x = 15,566.03

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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.