Home / 6,116.40-9,174.60-5,578.80

Finding the Fourth Proportional to 6,116.40, 9,174.60 and 5,578.80

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Solution

The fourth proportional to 6,116.40, 9,174.60 and 5,578.80 is: 8,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,116.40 : 9,174.60 = 5,578.80 : x
  2. Step 2: Convert to fraction form
    6,116.40/9,174.60 = 5,578.80/x
  3. Step 3: Cross multiply
    6,116.40x = 9,174.60 × 5,578.80
  4. Step 4: Simplify right side
    6,116.40x = 51,183,258.48
  5. Step 5: Solve for x
    x = 51,183,258.48/6,116.40
  6. Step 6: Final answer
    x = 8,368.20

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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.