Home / 18,778.53-25,914.32-10,280.58

Finding the Fourth Proportional to 18,778.53, 25,914.32 and 10,280.58

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Solution

The fourth proportional to 18,778.53, 25,914.32 and 10,280.58 is: 14,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.53 : 25,914.32 = 10,280.58 : x
  2. Step 2: Convert to fraction form
    18,778.53/25,914.32 = 10,280.58/x
  3. Step 3: Cross multiply
    18,778.53x = 25,914.32 × 10,280.58
  4. Step 4: Simplify right side
    18,778.53x = 266,414,265.61
  5. Step 5: Solve for x
    x = 266,414,265.61/18,778.53
  6. Step 6: Final answer
    x = 14,187.18

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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.