Home / 11,391.20-17,088.56-4,817.40

Finding the Fourth Proportional to 11,391.20, 17,088.56 and 4,817.40

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Solution

The fourth proportional to 11,391.20, 17,088.56 and 4,817.40 is: 7,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.20 : 17,088.56 = 4,817.40 : x
  2. Step 2: Convert to fraction form
    11,391.20/17,088.56 = 4,817.40/x
  3. Step 3: Cross multiply
    11,391.20x = 17,088.56 × 4,817.40
  4. Step 4: Simplify right side
    11,391.20x = 82,322,428.94
  5. Step 5: Solve for x
    x = 82,322,428.94/11,391.20
  6. Step 6: Final answer
    x = 7,226.84

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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.