Home / 8,816.91-12,165.44-5,088.75

Finding the Fourth Proportional to 8,816.91, 12,165.44 and 5,088.75

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Solution

The fourth proportional to 8,816.91, 12,165.44 and 5,088.75 is: 7,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.91 : 12,165.44 = 5,088.75 : x
  2. Step 2: Convert to fraction form
    8,816.91/12,165.44 = 5,088.75/x
  3. Step 3: Cross multiply
    8,816.91x = 12,165.44 × 5,088.75
  4. Step 4: Simplify right side
    8,816.91x = 61,906,857.36
  5. Step 5: Solve for x
    x = 61,906,857.36/8,816.91
  6. Step 6: Final answer
    x = 7,021.38

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Half scale
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Double scale
Find fourth proportional to 8,817.91, 12,166.81 and 5,089.75
Similar ratio
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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.