Home / 8,451.36-11,662.56-4,725.12

Finding the Fourth Proportional to 8,451.36, 11,662.56 and 4,725.12

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Solution

The fourth proportional to 8,451.36, 11,662.56 and 4,725.12 is: 6,520.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.36 : 11,662.56 = 4,725.12 : x
  2. Step 2: Convert to fraction form
    8,451.36/11,662.56 = 4,725.12/x
  3. Step 3: Cross multiply
    8,451.36x = 11,662.56 × 4,725.12
  4. Step 4: Simplify right side
    8,451.36x = 55,106,995.51
  5. Step 5: Solve for x
    x = 55,106,995.51/8,451.36
  6. Step 6: Final answer
    x = 6,520.49

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Half scale
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Double 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.