Home / 8,175.36-11,280.80-4,637.88

Finding the Fourth Proportional to 8,175.36, 11,280.80 and 4,637.88

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Solution

The fourth proportional to 8,175.36, 11,280.80 and 4,637.88 is: 6,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.36 : 11,280.80 = 4,637.88 : x
  2. Step 2: Convert to fraction form
    8,175.36/11,280.80 = 4,637.88/x
  3. Step 3: Cross multiply
    8,175.36x = 11,280.80 × 4,637.88
  4. Step 4: Simplify right side
    8,175.36x = 52,318,996.70
  5. Step 5: Solve for x
    x = 52,318,996.70/8,175.36
  6. Step 6: Final answer
    x = 6,399.60

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Half scale
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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.