Home / 8,878.10-12,252.75-5,694.80

Finding the Fourth Proportional to 8,878.10, 12,252.75 and 5,694.80

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Solution

The fourth proportional to 8,878.10, 12,252.75 and 5,694.80 is: 7,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.10 : 12,252.75 = 5,694.80 : x
  2. Step 2: Convert to fraction form
    8,878.10/12,252.75 = 5,694.80/x
  3. Step 3: Cross multiply
    8,878.10x = 12,252.75 × 5,694.80
  4. Step 4: Simplify right side
    8,878.10x = 69,776,960.70
  5. Step 5: Solve for x
    x = 69,776,960.70/8,878.10
  6. Step 6: Final answer
    x = 7,859.45

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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.