Home / 8,815.25-12,165.09-4,782.08

Finding the Fourth Proportional to 8,815.25, 12,165.09 and 4,782.08

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Solution

The fourth proportional to 8,815.25, 12,165.09 and 4,782.08 is: 6,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.25 : 12,165.09 = 4,782.08 : x
  2. Step 2: Convert to fraction form
    8,815.25/12,165.09 = 4,782.08/x
  3. Step 3: Cross multiply
    8,815.25x = 12,165.09 × 4,782.08
  4. Step 4: Simplify right side
    8,815.25x = 58,174,433.59
  5. Step 5: Solve for x
    x = 58,174,433.59/8,815.25
  6. Step 6: Final answer
    x = 6,599.29

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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.