Home / 8,878.65-12,247.38-5,690.82

Finding the Fourth Proportional to 8,878.65, 12,247.38 and 5,690.82

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Solution

The fourth proportional to 8,878.65, 12,247.38 and 5,690.82 is: 7,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.65 : 12,247.38 = 5,690.82 : x
  2. Step 2: Convert to fraction form
    8,878.65/12,247.38 = 5,690.82/x
  3. Step 3: Cross multiply
    8,878.65x = 12,247.38 × 5,690.82
  4. Step 4: Simplify right side
    8,878.65x = 69,697,635.05
  5. Step 5: Solve for x
    x = 69,697,635.05/8,878.65
  6. Step 6: Final answer
    x = 7,850.03

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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.