Home / 7,165.11-9,878.43-4,922.85

Finding the Fourth Proportional to 7,165.11, 9,878.43 and 4,922.85

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Solution

The fourth proportional to 7,165.11, 9,878.43 and 4,922.85 is: 6,787.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.11 : 9,878.43 = 4,922.85 : x
  2. Step 2: Convert to fraction form
    7,165.11/9,878.43 = 4,922.85/x
  3. Step 3: Cross multiply
    7,165.11x = 9,878.43 × 4,922.85
  4. Step 4: Simplify right side
    7,165.11x = 48,630,029.13
  5. Step 5: Solve for x
    x = 48,630,029.13/7,165.11
  6. Step 6: Final answer
    x = 6,787.06

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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.