Home / 8,541.12-11,788.32-4,815.12

Finding the Fourth Proportional to 8,541.12, 11,788.32 and 4,815.12

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Solution

The fourth proportional to 8,541.12, 11,788.32 and 4,815.12 is: 6,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.12 : 11,788.32 = 4,815.12 : x
  2. Step 2: Convert to fraction form
    8,541.12/11,788.32 = 4,815.12/x
  3. Step 3: Cross multiply
    8,541.12x = 11,788.32 × 4,815.12
  4. Step 4: Simplify right side
    8,541.12x = 56,762,175.40
  5. Step 5: Solve for x
    x = 56,762,175.40/8,541.12
  6. Step 6: Final answer
    x = 6,645.75

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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.