Home / 8,917.03-12,305.88-4,938.15

Finding the Fourth Proportional to 8,917.03, 12,305.88 and 4,938.15

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Solution

The fourth proportional to 8,917.03, 12,305.88 and 4,938.15 is: 6,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.03 : 12,305.88 = 4,938.15 : x
  2. Step 2: Convert to fraction form
    8,917.03/12,305.88 = 4,938.15/x
  3. Step 3: Cross multiply
    8,917.03x = 12,305.88 × 4,938.15
  4. Step 4: Simplify right side
    8,917.03x = 60,768,244.36
  5. Step 5: Solve for x
    x = 60,768,244.36/8,917.03
  6. Step 6: Final answer
    x = 6,814.85

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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.