Home / 18,155.81-25,056.39-11,083.60

Finding the Fourth Proportional to 18,155.81, 25,056.39 and 11,083.60

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Solution

The fourth proportional to 18,155.81, 25,056.39 and 11,083.60 is: 15,296.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.81 : 25,056.39 = 11,083.60 : x
  2. Step 2: Convert to fraction form
    18,155.81/25,056.39 = 11,083.60/x
  3. Step 3: Cross multiply
    18,155.81x = 25,056.39 × 11,083.60
  4. Step 4: Simplify right side
    18,155.81x = 277,715,014.74
  5. Step 5: Solve for x
    x = 277,715,014.74/18,155.81
  6. Step 6: Final answer
    x = 15,296.20

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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.