Home / 8,919.18-12,308.58-4,940.36

Finding the Fourth Proportional to 8,919.18, 12,308.58 and 4,940.36

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Solution

The fourth proportional to 8,919.18, 12,308.58 and 4,940.36 is: 6,817.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.18 : 12,308.58 = 4,940.36 : x
  2. Step 2: Convert to fraction form
    8,919.18/12,308.58 = 4,940.36/x
  3. Step 3: Cross multiply
    8,919.18x = 12,308.58 × 4,940.36
  4. Step 4: Simplify right side
    8,919.18x = 60,808,816.29
  5. Step 5: Solve for x
    x = 60,808,816.29/8,919.18
  6. Step 6: Final answer
    x = 6,817.76

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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.