Home / 8,440.38-11,647.20-5,084.28

Finding the Fourth Proportional to 8,440.38, 11,647.20 and 5,084.28

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Solution

The fourth proportional to 8,440.38, 11,647.20 and 5,084.28 is: 7,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.38 : 11,647.20 = 5,084.28 : x
  2. Step 2: Convert to fraction form
    8,440.38/11,647.20 = 5,084.28/x
  3. Step 3: Cross multiply
    8,440.38x = 11,647.20 × 5,084.28
  4. Step 4: Simplify right side
    8,440.38x = 59,217,626.02
  5. Step 5: Solve for x
    x = 59,217,626.02/8,440.38
  6. Step 6: Final answer
    x = 7,015.99

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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.