Home / 8,917.09-12,304.38-4,938.10

Finding the Fourth Proportional to 8,917.09, 12,304.38 and 4,938.10

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Solution

The fourth proportional to 8,917.09, 12,304.38 and 4,938.10 is: 6,813.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.09 : 12,304.38 = 4,938.10 : x
  2. Step 2: Convert to fraction form
    8,917.09/12,304.38 = 4,938.10/x
  3. Step 3: Cross multiply
    8,917.09x = 12,304.38 × 4,938.10
  4. Step 4: Simplify right side
    8,917.09x = 60,760,258.88
  5. Step 5: Solve for x
    x = 60,760,258.88/8,917.09
  6. Step 6: Final answer
    x = 6,813.91

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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.