Home / 18,088.48-27,131.76-4,940.80

Finding the Fourth Proportional to 18,088.48, 27,131.76 and 4,940.80

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Solution

The fourth proportional to 18,088.48, 27,131.76 and 4,940.80 is: 7,410.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.48 : 27,131.76 = 4,940.80 : x
  2. Step 2: Convert to fraction form
    18,088.48/27,131.76 = 4,940.80/x
  3. Step 3: Cross multiply
    18,088.48x = 27,131.76 × 4,940.80
  4. Step 4: Simplify right side
    18,088.48x = 134,052,599.81
  5. Step 5: Solve for x
    x = 134,052,599.81/18,088.48
  6. Step 6: Final answer
    x = 7,410.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.