Home / 18,280.60-27,428.22-7,190.08

Finding the Fourth Proportional to 18,280.60, 27,428.22 and 7,190.08

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Solution

The fourth proportional to 18,280.60, 27,428.22 and 7,190.08 is: 10,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.60 : 27,428.22 = 7,190.08 : x
  2. Step 2: Convert to fraction form
    18,280.60/27,428.22 = 7,190.08/x
  3. Step 3: Cross multiply
    18,280.60x = 27,428.22 × 7,190.08
  4. Step 4: Simplify right side
    18,280.60x = 197,211,096.06
  5. Step 5: Solve for x
    x = 197,211,096.06/18,280.60
  6. Step 6: Final answer
    x = 10,788.00

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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.